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Trig Equations
Trig Equations
 
1
e.g. i cos2
2
  0 360  
Trig Equations
 
1
e.g. i cos2
2
  0 360  
0 2 720  
Trig Equations
 
1
e.g. i cos2
2
  0 360  
Q1, Q4 0 2 720  
Trig Equations
 
1
e.g. i cos2
2
  0 360  
Q1, Q4


0 2 720  
Trig Equations
 
1
e.g. i cos2
2
  0 360  
Q1, Q4


1
cos
2
60



 
0 2 720  
Trig Equations
 
1
e.g. i cos2
2
  0 360  
Q1, Q4


1
cos
2
60



 
2 ,360   
2 60 ,360 60
2 60 ,300 ,420 ,660


 

 
   
0 2 720  
Trig Equations
 
1
e.g. i cos2
2
  0 360  
Q1, Q4


1
cos
2
60



 
2 ,360   
2 60 ,360 60
2 60 ,300 ,420 ,660


 

 
   
0 2 720  
30 ,150 ,210 ,330     
Trig Equations
 
1
e.g. i cos2
2
  0 360  
Q1, Q4


1
cos
2
60



 
2 ,360   
2 60 ,360 60
2 60 ,300 ,420 ,660


 

 
   
0 2 720  
30 ,150 ,210 ,330     
OR
1
cos2
2
  0 360  
Trig Equations
 
1
e.g. i cos2
2
  0 360  
Q1, Q4


1
cos
2
60



 
2 ,360   
2 60 ,360 60
2 60 ,300 ,420 ,660


 

 
   
0 2 720  
30 ,150 ,210 ,330     
OR
1
cos2
2
  0 360  
2 1
2cos 1
2
  
Trig Equations
 
1
e.g. i cos2
2
  0 360  
Q1, Q4


1
cos
2
60



 
2 ,360   
2 60 ,360 60
2 60 ,300 ,420 ,660


 

 
   
0 2 720  
30 ,150 ,210 ,330     
OR
1
cos2
2
  0 360  
2 1
2cos 1
2
  
2 3
cos
4
 
3
cos
2
  
Trig Equations
 
1
e.g. i cos2
2
  0 360  
Q1, Q4


1
cos
2
60



 
2 ,360   
2 60 ,360 60
2 60 ,300 ,420 ,660


 

 
   
0 2 720  
30 ,150 ,210 ,330     
OR
1
cos2
2
  0 360  
2 1
2cos 1
2
  
2 3
cos
4
 
3
cos
2
  
Q1, Q2, Q3, Q4
Trig Equations
 
1
e.g. i cos2
2
  0 360  
Q1, Q4


1
cos
2
60



 
2 ,360   
2 60 ,360 60
2 60 ,300 ,420 ,660


 

 
   
0 2 720  
30 ,150 ,210 ,330     
OR
1
cos2
2
  0 360  
2 1
2cos 1
2
  
2 3
cos
4
 
3
cos
2
  
Q1, Q2, Q3, Q4 
 
Trig Equations
 
1
e.g. i cos2
2
  0 360  
Q1, Q4


1
cos
2
60



 
2 ,360   
2 60 ,360 60
2 60 ,300 ,420 ,660


 

 
   
0 2 720  
30 ,150 ,210 ,330     
OR
1
cos2
2
  0 360  
2 1
2cos 1
2
  
2 3
cos
4
 
3
cos
2
  
Q1, Q2, Q3, Q4
3
cos
2
30



 

 
Trig Equations
 
1
e.g. i cos2
2
  0 360  
Q1, Q4


1
cos
2
60



 
2 ,360   
2 60 ,360 60
2 60 ,300 ,420 ,660


 

 
   
0 2 720  
30 ,150 ,210 ,330     
OR
1
cos2
2
  0 360  
2 1
2cos 1
2
  
2 3
cos
4
 
3
cos
2
  
Q1, Q2, Q3, Q4
3
cos
2
30



 

 
,180 ,180 ,360       
30 ,180 30 ,180 30 ,360 30
30 ,150 ,210 ,330


   

   
   
  2
ii 4sec 3tan 5x x  0 360x  
  2
ii 4sec 3tan 5x x  0 360x  
2
2
4 4tan 3tan 5
4tan 3tan 1 0
x x
x x
  
  
  2
ii 4sec 3tan 5x x  0 360x  
2
2
4 4tan 3tan 5
4tan 3tan 1 0
x x
x x
  
  
  4tan 1 tan 1 0x x  
  2
ii 4sec 3tan 5x x  0 360x  
2
2
4 4tan 3tan 5
4tan 3tan 1 0
x x
x x
  
  
  4tan 1 tan 1 0x x  
1
tan or tan 1
4
x x  
  2
ii 4sec 3tan 5x x  0 360x  
2
2
4 4tan 3tan 5
4tan 3tan 1 0
x x
x x
  
  
  4tan 1 tan 1 0x x  
1
tan or tan 1
4
x x  
Q2, Q4
  2
ii 4sec 3tan 5x x  0 360x  
2
2
4 4tan 3tan 5
4tan 3tan 1 0
x x
x x
  
  
  4tan 1 tan 1 0x x  
1
tan or tan 1
4
x x  
Q2, Q4


  2
ii 4sec 3tan 5x x  0 360x  
2
2
4 4tan 3tan 5
4tan 3tan 1 0
x x
x x
  
  
  4tan 1 tan 1 0x x  
1
tan or tan 1
4
x x  
Q2, Q4
1
tan
4
14 2



 


  2
ii 4sec 3tan 5x x  0 360x  
2
2
4 4tan 3tan 5
4tan 3tan 1 0
x x
x x
  
  
  4tan 1 tan 1 0x x  
1
tan or tan 1
4
x x  
Q2, Q4
1
tan
4
14 2



 


180 ,360x    
180 14 2 ,360 14 2
165 58 ,345 58
x
x
   
 
 
 
  2
ii 4sec 3tan 5x x  0 360x  
2
2
4 4tan 3tan 5
4tan 3tan 1 0
x x
x x
  
  
  4tan 1 tan 1 0x x  
1
tan or tan 1
4
x x  
Q2, Q4
1
tan
4
14 2



 


180 ,360x    
180 14 2 ,360 14 2
165 58 ,345 58
x
x
   
 
 
 
Q1, Q3
  2
ii 4sec 3tan 5x x  0 360x  
2
2
4 4tan 3tan 5
4tan 3tan 1 0
x x
x x
  
  
  4tan 1 tan 1 0x x  
1
tan or tan 1
4
x x  
Q2, Q4
1
tan
4
14 2



 


180 ,360x    
180 14 2 ,360 14 2
165 58 ,345 58
x
x
   
 
 
 
Q1, Q3


  2
ii 4sec 3tan 5x x  0 360x  
2
2
4 4tan 3tan 5
4tan 3tan 1 0
x x
x x
  
  
  4tan 1 tan 1 0x x  
1
tan or tan 1
4
x x  
Q2, Q4
1
tan
4
14 2



 


180 ,360x    
180 14 2 ,360 14 2
165 58 ,345 58
x
x
   
 
 
 
Q1, Q3
tan 1
45



 


  2
ii 4sec 3tan 5x x  0 360x  
2
2
4 4tan 3tan 5
4tan 3tan 1 0
x x
x x
  
  
  4tan 1 tan 1 0x x  
1
tan or tan 1
4
x x  
Q2, Q4
1
tan
4
14 2



 


180 ,360x    
180 14 2 ,360 14 2
165 58 ,345 58
x
x
   
 
 
 
Q1, Q3
tan 1
45



 


,180x   
45 ,180 45
45 ,225
x
x
 

 
 
  2
ii 4sec 3tan 5x x  0 360x  
2
2
4 4tan 3tan 5
4tan 3tan 1 0
x x
x x
  
  
  4tan 1 tan 1 0x x  
1
tan or tan 1
4
x x  
Q2, Q4
1
tan
4
14 2



 


180 ,360x    
180 14 2 ,360 14 2
165 58 ,345 58
x
x
   
 
 
 
Q1, Q3
tan 1
45



 


,180x   
45 ,180 45
45 ,225
x
x
 

 
 
45 ,165 58 ,225 ,345 58x      
  2 2
iii cos2 4cos 2sin    0 360  
  2 2
iii cos2 4cos 2sin    0 360  
2 2 2 2
cos sin 4cos 2sin     
  2 2
iii cos2 4cos 2sin    0 360  
2 2 2 2
cos sin 4cos 2sin     
2 2
3cos sin 
  2 2
iii cos2 4cos 2sin    0 360  
2 2 2 2
cos sin 4cos 2sin     
2 2
3cos sin 
2
tan 3
tan 3



 
  2 2
iii cos2 4cos 2sin    0 360  
2 2 2 2
cos sin 4cos 2sin     
2 2
3cos sin 
2
tan 3
tan 3



 
Q1, Q2, Q3, Q4
  2 2
iii cos2 4cos 2sin    0 360  
2 2 2 2
cos sin 4cos 2sin     
2 2
3cos sin 
2
tan 3
tan 3



 
Q1, Q2, Q3, Q4

 
  2 2
iii cos2 4cos 2sin    0 360  
2 2 2 2
cos sin 4cos 2sin     
2 2
3cos sin 
2
tan 3
tan 3



 
Q1, Q2, Q3, Q4
tan 3
60



 

 
  2 2
iii cos2 4cos 2sin    0 360  
2 2 2 2
cos sin 4cos 2sin     
2 2
3cos sin 
2
tan 3
tan 3



 
Q1, Q2, Q3, Q4
tan 3
60



 

 
,180 ,180 ,360       
60 ,180 60 ,180 60 ,360 60
60 ,120 ,240 ,300


   

   
   
  2 2
iii cos2 4cos 2sin    0 360  
2 2 2 2
cos sin 4cos 2sin     
2 2
3cos sin 
2
tan 3
tan 3



 
Q1, Q2, Q3, Q4
tan 3
60



 

 
,180 ,180 ,360       
60 ,180 60 ,180 60 ,360 60
60 ,120 ,240 ,300


   

   
   
2000 Extension 1 HSC Q2c)(iv) cos2 sin , 0 360     
  2 2
iii cos2 4cos 2sin    0 360  
2 2 2 2
cos sin 4cos 2sin     
2 2
3cos sin 
2
tan 3
tan 3



 
Q1, Q2, Q3, Q4
tan 3
60



 

 
,180 ,180 ,360       
60 ,180 60 ,180 60 ,360 60
60 ,120 ,240 ,300


   

   
   
2000 Extension 1 HSC Q2c)(iv) cos2 sin , 0 360     
 sinsin21 2

  2 2
iii cos2 4cos 2sin    0 360  
2 2 2 2
cos sin 4cos 2sin     
2 2
3cos sin 
2
tan 3
tan 3



 
Q1, Q2, Q3, Q4
tan 3
60



 

 
,180 ,180 ,360       
60 ,180 60 ,180 60 ,360 60
60 ,120 ,240 ,300


   

   
   
2000 Extension 1 HSC Q2c)(iv) cos2 sin , 0 360     
 sinsin21 2

01sinsin2 2
 
  2 2
iii cos2 4cos 2sin    0 360  
2 2 2 2
cos sin 4cos 2sin     
2 2
3cos sin 
2
tan 3
tan 3



 
Q1, Q2, Q3, Q4
tan 3
60



 

 
,180 ,180 ,360       
60 ,180 60 ,180 60 ,360 60
60 ,120 ,240 ,300


   

   
   
2000 Extension 1 HSC Q2c)(iv) cos2 sin , 0 360     
 sinsin21 2

01sinsin2 2
 
   01sin1sin2  
  2 2
iii cos2 4cos 2sin    0 360  
2 2 2 2
cos sin 4cos 2sin     
2 2
3cos sin 
2
tan 3
tan 3



 
Q1, Q2, Q3, Q4
tan 3
60



 

 
,180 ,180 ,360       
60 ,180 60 ,180 60 ,360 60
60 ,120 ,240 ,300


   

   
   
2000 Extension 1 HSC Q2c)(iv) cos2 sin , 0 360     
 sinsin21 2

01sinsin2 2
 
   01sin1sin2  
1sinor
2
1
sin  
  2 2
iii cos2 4cos 2sin    0 360  
2 2 2 2
cos sin 4cos 2sin     
2 2
3cos sin 
2
tan 3
tan 3



 
Q1, Q2, Q3, Q4
tan 3
60



 

 
,180 ,180 ,360       
60 ,180 60 ,180 60 ,360 60
60 ,120 ,240 ,300


   

   
   
2000 Extension 1 HSC Q2c)(iv) cos2 sin , 0 360     
 sinsin21 2

01sinsin2 2
 
   01sin1sin2  
1sinor
2
1
sin  
Q1, Q2
  2 2
iii cos2 4cos 2sin    0 360  
2 2 2 2
cos sin 4cos 2sin     
2 2
3cos sin 
2
tan 3
tan 3



 
Q1, Q2, Q3, Q4
tan 3
60



 

 
,180 ,180 ,360       
60 ,180 60 ,180 60 ,360 60
60 ,120 ,240 ,300


   

   
   
2000 Extension 1 HSC Q2c)(iv) cos2 sin , 0 360     
 sinsin21 2

01sinsin2 2
 
   01sin1sin2  
1sinor
2
1
sin  
Q1, Q2

  2 2
iii cos2 4cos 2sin    0 360  
2 2 2 2
cos sin 4cos 2sin     
2 2
3cos sin 
2
tan 3
tan 3



 
Q1, Q2, Q3, Q4
tan 3
60



 

 
,180 ,180 ,360       
60 ,180 60 ,180 60 ,360 60
60 ,120 ,240 ,300


   

   
   
2000 Extension 1 HSC Q2c)(iv) cos2 sin , 0 360     
 sinsin21 2

01sinsin2 2
 
   01sin1sin2  
1sinor
2
1
sin  
Q1, Q2 
270

  2 2
iii cos2 4cos 2sin    0 360  
2 2 2 2
cos sin 4cos 2sin     
2 2
3cos sin 
2
tan 3
tan 3



 
Q1, Q2, Q3, Q4
tan 3
60



 

 
,180 ,180 ,360       
60 ,180 60 ,180 60 ,360 60
60 ,120 ,240 ,300


   

   
   
2000 Extension 1 HSC Q2c)(iv) cos2 sin , 0 360     
 sinsin21 2

01sinsin2 2
 
   01sin1sin2  
1sinor
2
1
sin  
Q1, Q2 
270


30
2
1
sin




  2 2
iii cos2 4cos 2sin    0 360  
2 2 2 2
cos sin 4cos 2sin     
2 2
3cos sin 
2
tan 3
tan 3



 
Q1, Q2, Q3, Q4
tan 3
60



 

 
,180 ,180 ,360       
60 ,180 60 ,180 60 ,360 60
60 ,120 ,240 ,300


   

   
   
2000 Extension 1 HSC Q2c)(iv) cos2 sin , 0 360     
 sinsin21 2

01sinsin2 2
 
   01sin1sin2  
1sinor
2
1
sin  
Q1, Q2 
270


30
2
1
sin




,180   
30 ,180 30
30 ,150


 

 
 
  2 2
iii cos2 4cos 2sin    0 360  
2 2 2 2
cos sin 4cos 2sin     
2 2
3cos sin 
2
tan 3
tan 3



 
Q1, Q2, Q3, Q4
tan 3
60



 

 
,180 ,180 ,360       
60 ,180 60 ,180 60 ,360 60
60 ,120 ,240 ,300


   

   
   
2000 Extension 1 HSC Q2c)(iv) cos2 sin , 0 360     
 sinsin21 2

01sinsin2 2
 
   01sin1sin2  
1sinor
2
1
sin  
Q1, Q2 
270


30
2
1
sin




,180   
30 ,180 30
30 ,150


 

 
 

270,150,30
1992 Extension 1 HSC Q2a)2
(v) 2sin sin 2 , 0 360     
1992 Extension 1 HSC Q2a)2
(v) 2sin sin 2 , 0 360     
 cossin2sin2 2

1992 Extension 1 HSC Q2a)2
(v) 2sin sin 2 , 0 360     
 cossin2sin2 2

0cossin2sin2 2
 
1992 Extension 1 HSC Q2a)2
(v) 2sin sin 2 , 0 360     
 cossin2sin2 2

0cossin2sin2 2
 
  0cossinsin2  
1992 Extension 1 HSC Q2a)2
(v) 2sin sin 2 , 0 360     
 cossin2sin2 2

0cossin2sin2 2
 
sin 0 or sin cos   
  0cossinsin2  
1992 Extension 1 HSC Q2a)2
(v) 2sin sin 2 , 0 360     
 cossin2sin2 2

0cossin2sin2 2
 
sin 0 or sin cos   
  0cossinsin2  

360,180,0
1992 Extension 1 HSC Q2a)2
(v) 2sin sin 2 , 0 360     
 cossin2sin2 2

0cossin2sin2 2
 
sin 0 or sin cos   
  0cossinsin2  

360,180,0 1tan 
1992 Extension 1 HSC Q2a)2
(v) 2sin sin 2 , 0 360     
 cossin2sin2 2

0cossin2sin2 2
 
sin 0 or sin cos   
  0cossinsin2  

360,180,0 1tan 
Q1, Q3
1992 Extension 1 HSC Q2a)2
(v) 2sin sin 2 , 0 360     
 cossin2sin2 2

0cossin2sin2 2
 
sin 0 or sin cos   
  0cossinsin2  

360,180,0 1tan 
Q1, Q3


1992 Extension 1 HSC Q2a)2
(v) 2sin sin 2 , 0 360     
 cossin2sin2 2

0cossin2sin2 2
 
sin 0 or sin cos   
  0cossinsin2  

360,180,0 1tan 
Q1, Q3
tan 1
45



 


1992 Extension 1 HSC Q2a)2
(v) 2sin sin 2 , 0 360     
 cossin2sin2 2

0cossin2sin2 2
 
sin 0 or sin cos   
  0cossinsin2  

360,180,0 1tan 
Q1, Q3
tan 1
45



 


,180   
45 ,180 45
45 ,225


 

 
 
1992 Extension 1 HSC Q2a)2
(v) 2sin sin 2 , 0 360     
 cossin2sin2 2

0cossin2sin2 2
 
sin 0 or sin cos   
  0cossinsin2  

360,180,0 1tan 
Q1, Q3
tan 1
45



 


,180   
45 ,180 45
45 ,225


 

 
 

360,225,180,45,0
1992 Extension 1 HSC Q2a)2
(v) 2sin sin 2 , 0 360     
 cossin2sin2 2

0cossin2sin2 2
 
sin 0 or sin cos   
  0cossinsin2  

360,180,0 1tan 
Q1, Q3
tan 1
45



 


,180   
45 ,180 45
45 ,225


 

 
 

360,225,180,45,0
Exercise 2D;
2ac, 4ac, 5adgi,
9adgj, 10bdfij,
16, 24*

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11 x1 t08 06 trig equations (2013)

  • 2. Trig Equations   1 e.g. i cos2 2   0 360  
  • 3. Trig Equations   1 e.g. i cos2 2   0 360   0 2 720  
  • 4. Trig Equations   1 e.g. i cos2 2   0 360   Q1, Q4 0 2 720  
  • 5. Trig Equations   1 e.g. i cos2 2   0 360   Q1, Q4   0 2 720  
  • 6. Trig Equations   1 e.g. i cos2 2   0 360   Q1, Q4   1 cos 2 60      0 2 720  
  • 7. Trig Equations   1 e.g. i cos2 2   0 360   Q1, Q4   1 cos 2 60      2 ,360    2 60 ,360 60 2 60 ,300 ,420 ,660            0 2 720  
  • 8. Trig Equations   1 e.g. i cos2 2   0 360   Q1, Q4   1 cos 2 60      2 ,360    2 60 ,360 60 2 60 ,300 ,420 ,660            0 2 720   30 ,150 ,210 ,330     
  • 9. Trig Equations   1 e.g. i cos2 2   0 360   Q1, Q4   1 cos 2 60      2 ,360    2 60 ,360 60 2 60 ,300 ,420 ,660            0 2 720   30 ,150 ,210 ,330      OR 1 cos2 2   0 360  
  • 10. Trig Equations   1 e.g. i cos2 2   0 360   Q1, Q4   1 cos 2 60      2 ,360    2 60 ,360 60 2 60 ,300 ,420 ,660            0 2 720   30 ,150 ,210 ,330      OR 1 cos2 2   0 360   2 1 2cos 1 2   
  • 11. Trig Equations   1 e.g. i cos2 2   0 360   Q1, Q4   1 cos 2 60      2 ,360    2 60 ,360 60 2 60 ,300 ,420 ,660            0 2 720   30 ,150 ,210 ,330      OR 1 cos2 2   0 360   2 1 2cos 1 2    2 3 cos 4   3 cos 2   
  • 12. Trig Equations   1 e.g. i cos2 2   0 360   Q1, Q4   1 cos 2 60      2 ,360    2 60 ,360 60 2 60 ,300 ,420 ,660            0 2 720   30 ,150 ,210 ,330      OR 1 cos2 2   0 360   2 1 2cos 1 2    2 3 cos 4   3 cos 2    Q1, Q2, Q3, Q4
  • 13. Trig Equations   1 e.g. i cos2 2   0 360   Q1, Q4   1 cos 2 60      2 ,360    2 60 ,360 60 2 60 ,300 ,420 ,660            0 2 720   30 ,150 ,210 ,330      OR 1 cos2 2   0 360   2 1 2cos 1 2    2 3 cos 4   3 cos 2    Q1, Q2, Q3, Q4   
  • 14. Trig Equations   1 e.g. i cos2 2   0 360   Q1, Q4   1 cos 2 60      2 ,360    2 60 ,360 60 2 60 ,300 ,420 ,660            0 2 720   30 ,150 ,210 ,330      OR 1 cos2 2   0 360   2 1 2cos 1 2    2 3 cos 4   3 cos 2    Q1, Q2, Q3, Q4 3 cos 2 30        
  • 15. Trig Equations   1 e.g. i cos2 2   0 360   Q1, Q4   1 cos 2 60      2 ,360    2 60 ,360 60 2 60 ,300 ,420 ,660            0 2 720   30 ,150 ,210 ,330      OR 1 cos2 2   0 360   2 1 2cos 1 2    2 3 cos 4   3 cos 2    Q1, Q2, Q3, Q4 3 cos 2 30         ,180 ,180 ,360        30 ,180 30 ,180 30 ,360 30 30 ,150 ,210 ,330               
  • 16.   2 ii 4sec 3tan 5x x  0 360x  
  • 17.   2 ii 4sec 3tan 5x x  0 360x   2 2 4 4tan 3tan 5 4tan 3tan 1 0 x x x x      
  • 18.   2 ii 4sec 3tan 5x x  0 360x   2 2 4 4tan 3tan 5 4tan 3tan 1 0 x x x x         4tan 1 tan 1 0x x  
  • 19.   2 ii 4sec 3tan 5x x  0 360x   2 2 4 4tan 3tan 5 4tan 3tan 1 0 x x x x         4tan 1 tan 1 0x x   1 tan or tan 1 4 x x  
  • 20.   2 ii 4sec 3tan 5x x  0 360x   2 2 4 4tan 3tan 5 4tan 3tan 1 0 x x x x         4tan 1 tan 1 0x x   1 tan or tan 1 4 x x   Q2, Q4
  • 21.   2 ii 4sec 3tan 5x x  0 360x   2 2 4 4tan 3tan 5 4tan 3tan 1 0 x x x x         4tan 1 tan 1 0x x   1 tan or tan 1 4 x x   Q2, Q4  
  • 22.   2 ii 4sec 3tan 5x x  0 360x   2 2 4 4tan 3tan 5 4tan 3tan 1 0 x x x x         4tan 1 tan 1 0x x   1 tan or tan 1 4 x x   Q2, Q4 1 tan 4 14 2       
  • 23.   2 ii 4sec 3tan 5x x  0 360x   2 2 4 4tan 3tan 5 4tan 3tan 1 0 x x x x         4tan 1 tan 1 0x x   1 tan or tan 1 4 x x   Q2, Q4 1 tan 4 14 2        180 ,360x     180 14 2 ,360 14 2 165 58 ,345 58 x x          
  • 24.   2 ii 4sec 3tan 5x x  0 360x   2 2 4 4tan 3tan 5 4tan 3tan 1 0 x x x x         4tan 1 tan 1 0x x   1 tan or tan 1 4 x x   Q2, Q4 1 tan 4 14 2        180 ,360x     180 14 2 ,360 14 2 165 58 ,345 58 x x           Q1, Q3
  • 25.   2 ii 4sec 3tan 5x x  0 360x   2 2 4 4tan 3tan 5 4tan 3tan 1 0 x x x x         4tan 1 tan 1 0x x   1 tan or tan 1 4 x x   Q2, Q4 1 tan 4 14 2        180 ,360x     180 14 2 ,360 14 2 165 58 ,345 58 x x           Q1, Q3  
  • 26.   2 ii 4sec 3tan 5x x  0 360x   2 2 4 4tan 3tan 5 4tan 3tan 1 0 x x x x         4tan 1 tan 1 0x x   1 tan or tan 1 4 x x   Q2, Q4 1 tan 4 14 2        180 ,360x     180 14 2 ,360 14 2 165 58 ,345 58 x x           Q1, Q3 tan 1 45       
  • 27.   2 ii 4sec 3tan 5x x  0 360x   2 2 4 4tan 3tan 5 4tan 3tan 1 0 x x x x         4tan 1 tan 1 0x x   1 tan or tan 1 4 x x   Q2, Q4 1 tan 4 14 2        180 ,360x     180 14 2 ,360 14 2 165 58 ,345 58 x x           Q1, Q3 tan 1 45        ,180x    45 ,180 45 45 ,225 x x       
  • 28.   2 ii 4sec 3tan 5x x  0 360x   2 2 4 4tan 3tan 5 4tan 3tan 1 0 x x x x         4tan 1 tan 1 0x x   1 tan or tan 1 4 x x   Q2, Q4 1 tan 4 14 2        180 ,360x     180 14 2 ,360 14 2 165 58 ,345 58 x x           Q1, Q3 tan 1 45        ,180x    45 ,180 45 45 ,225 x x        45 ,165 58 ,225 ,345 58x      
  • 29.   2 2 iii cos2 4cos 2sin    0 360  
  • 30.   2 2 iii cos2 4cos 2sin    0 360   2 2 2 2 cos sin 4cos 2sin     
  • 31.   2 2 iii cos2 4cos 2sin    0 360   2 2 2 2 cos sin 4cos 2sin      2 2 3cos sin 
  • 32.   2 2 iii cos2 4cos 2sin    0 360   2 2 2 2 cos sin 4cos 2sin      2 2 3cos sin  2 tan 3 tan 3     
  • 33.   2 2 iii cos2 4cos 2sin    0 360   2 2 2 2 cos sin 4cos 2sin      2 2 3cos sin  2 tan 3 tan 3      Q1, Q2, Q3, Q4
  • 34.   2 2 iii cos2 4cos 2sin    0 360   2 2 2 2 cos sin 4cos 2sin      2 2 3cos sin  2 tan 3 tan 3      Q1, Q2, Q3, Q4   
  • 35.   2 2 iii cos2 4cos 2sin    0 360   2 2 2 2 cos sin 4cos 2sin      2 2 3cos sin  2 tan 3 tan 3      Q1, Q2, Q3, Q4 tan 3 60        
  • 36.   2 2 iii cos2 4cos 2sin    0 360   2 2 2 2 cos sin 4cos 2sin      2 2 3cos sin  2 tan 3 tan 3      Q1, Q2, Q3, Q4 tan 3 60         ,180 ,180 ,360        60 ,180 60 ,180 60 ,360 60 60 ,120 ,240 ,300               
  • 37.   2 2 iii cos2 4cos 2sin    0 360   2 2 2 2 cos sin 4cos 2sin      2 2 3cos sin  2 tan 3 tan 3      Q1, Q2, Q3, Q4 tan 3 60         ,180 ,180 ,360        60 ,180 60 ,180 60 ,360 60 60 ,120 ,240 ,300                2000 Extension 1 HSC Q2c)(iv) cos2 sin , 0 360     
  • 38.   2 2 iii cos2 4cos 2sin    0 360   2 2 2 2 cos sin 4cos 2sin      2 2 3cos sin  2 tan 3 tan 3      Q1, Q2, Q3, Q4 tan 3 60         ,180 ,180 ,360        60 ,180 60 ,180 60 ,360 60 60 ,120 ,240 ,300                2000 Extension 1 HSC Q2c)(iv) cos2 sin , 0 360       sinsin21 2 
  • 39.   2 2 iii cos2 4cos 2sin    0 360   2 2 2 2 cos sin 4cos 2sin      2 2 3cos sin  2 tan 3 tan 3      Q1, Q2, Q3, Q4 tan 3 60         ,180 ,180 ,360        60 ,180 60 ,180 60 ,360 60 60 ,120 ,240 ,300                2000 Extension 1 HSC Q2c)(iv) cos2 sin , 0 360       sinsin21 2  01sinsin2 2  
  • 40.   2 2 iii cos2 4cos 2sin    0 360   2 2 2 2 cos sin 4cos 2sin      2 2 3cos sin  2 tan 3 tan 3      Q1, Q2, Q3, Q4 tan 3 60         ,180 ,180 ,360        60 ,180 60 ,180 60 ,360 60 60 ,120 ,240 ,300                2000 Extension 1 HSC Q2c)(iv) cos2 sin , 0 360       sinsin21 2  01sinsin2 2      01sin1sin2  
  • 41.   2 2 iii cos2 4cos 2sin    0 360   2 2 2 2 cos sin 4cos 2sin      2 2 3cos sin  2 tan 3 tan 3      Q1, Q2, Q3, Q4 tan 3 60         ,180 ,180 ,360        60 ,180 60 ,180 60 ,360 60 60 ,120 ,240 ,300                2000 Extension 1 HSC Q2c)(iv) cos2 sin , 0 360       sinsin21 2  01sinsin2 2      01sin1sin2   1sinor 2 1 sin  
  • 42.   2 2 iii cos2 4cos 2sin    0 360   2 2 2 2 cos sin 4cos 2sin      2 2 3cos sin  2 tan 3 tan 3      Q1, Q2, Q3, Q4 tan 3 60         ,180 ,180 ,360        60 ,180 60 ,180 60 ,360 60 60 ,120 ,240 ,300                2000 Extension 1 HSC Q2c)(iv) cos2 sin , 0 360       sinsin21 2  01sinsin2 2      01sin1sin2   1sinor 2 1 sin   Q1, Q2
  • 43.   2 2 iii cos2 4cos 2sin    0 360   2 2 2 2 cos sin 4cos 2sin      2 2 3cos sin  2 tan 3 tan 3      Q1, Q2, Q3, Q4 tan 3 60         ,180 ,180 ,360        60 ,180 60 ,180 60 ,360 60 60 ,120 ,240 ,300                2000 Extension 1 HSC Q2c)(iv) cos2 sin , 0 360       sinsin21 2  01sinsin2 2      01sin1sin2   1sinor 2 1 sin   Q1, Q2 
  • 44.   2 2 iii cos2 4cos 2sin    0 360   2 2 2 2 cos sin 4cos 2sin      2 2 3cos sin  2 tan 3 tan 3      Q1, Q2, Q3, Q4 tan 3 60         ,180 ,180 ,360        60 ,180 60 ,180 60 ,360 60 60 ,120 ,240 ,300                2000 Extension 1 HSC Q2c)(iv) cos2 sin , 0 360       sinsin21 2  01sinsin2 2      01sin1sin2   1sinor 2 1 sin   Q1, Q2  270 
  • 45.   2 2 iii cos2 4cos 2sin    0 360   2 2 2 2 cos sin 4cos 2sin      2 2 3cos sin  2 tan 3 tan 3      Q1, Q2, Q3, Q4 tan 3 60         ,180 ,180 ,360        60 ,180 60 ,180 60 ,360 60 60 ,120 ,240 ,300                2000 Extension 1 HSC Q2c)(iv) cos2 sin , 0 360       sinsin21 2  01sinsin2 2      01sin1sin2   1sinor 2 1 sin   Q1, Q2  270   30 2 1 sin    
  • 46.   2 2 iii cos2 4cos 2sin    0 360   2 2 2 2 cos sin 4cos 2sin      2 2 3cos sin  2 tan 3 tan 3      Q1, Q2, Q3, Q4 tan 3 60         ,180 ,180 ,360        60 ,180 60 ,180 60 ,360 60 60 ,120 ,240 ,300                2000 Extension 1 HSC Q2c)(iv) cos2 sin , 0 360       sinsin21 2  01sinsin2 2      01sin1sin2   1sinor 2 1 sin   Q1, Q2  270   30 2 1 sin     ,180    30 ,180 30 30 ,150         
  • 47.   2 2 iii cos2 4cos 2sin    0 360   2 2 2 2 cos sin 4cos 2sin      2 2 3cos sin  2 tan 3 tan 3      Q1, Q2, Q3, Q4 tan 3 60         ,180 ,180 ,360        60 ,180 60 ,180 60 ,360 60 60 ,120 ,240 ,300                2000 Extension 1 HSC Q2c)(iv) cos2 sin , 0 360       sinsin21 2  01sinsin2 2      01sin1sin2   1sinor 2 1 sin   Q1, Q2  270   30 2 1 sin     ,180    30 ,180 30 30 ,150           270,150,30
  • 48. 1992 Extension 1 HSC Q2a)2 (v) 2sin sin 2 , 0 360     
  • 49. 1992 Extension 1 HSC Q2a)2 (v) 2sin sin 2 , 0 360       cossin2sin2 2 
  • 50. 1992 Extension 1 HSC Q2a)2 (v) 2sin sin 2 , 0 360       cossin2sin2 2  0cossin2sin2 2  
  • 51. 1992 Extension 1 HSC Q2a)2 (v) 2sin sin 2 , 0 360       cossin2sin2 2  0cossin2sin2 2     0cossinsin2  
  • 52. 1992 Extension 1 HSC Q2a)2 (v) 2sin sin 2 , 0 360       cossin2sin2 2  0cossin2sin2 2   sin 0 or sin cos      0cossinsin2  
  • 53. 1992 Extension 1 HSC Q2a)2 (v) 2sin sin 2 , 0 360       cossin2sin2 2  0cossin2sin2 2   sin 0 or sin cos      0cossinsin2    360,180,0
  • 54. 1992 Extension 1 HSC Q2a)2 (v) 2sin sin 2 , 0 360       cossin2sin2 2  0cossin2sin2 2   sin 0 or sin cos      0cossinsin2    360,180,0 1tan 
  • 55. 1992 Extension 1 HSC Q2a)2 (v) 2sin sin 2 , 0 360       cossin2sin2 2  0cossin2sin2 2   sin 0 or sin cos      0cossinsin2    360,180,0 1tan  Q1, Q3
  • 56. 1992 Extension 1 HSC Q2a)2 (v) 2sin sin 2 , 0 360       cossin2sin2 2  0cossin2sin2 2   sin 0 or sin cos      0cossinsin2    360,180,0 1tan  Q1, Q3  
  • 57. 1992 Extension 1 HSC Q2a)2 (v) 2sin sin 2 , 0 360       cossin2sin2 2  0cossin2sin2 2   sin 0 or sin cos      0cossinsin2    360,180,0 1tan  Q1, Q3 tan 1 45       
  • 58. 1992 Extension 1 HSC Q2a)2 (v) 2sin sin 2 , 0 360       cossin2sin2 2  0cossin2sin2 2   sin 0 or sin cos      0cossinsin2    360,180,0 1tan  Q1, Q3 tan 1 45        ,180    45 ,180 45 45 ,225         
  • 59. 1992 Extension 1 HSC Q2a)2 (v) 2sin sin 2 , 0 360       cossin2sin2 2  0cossin2sin2 2   sin 0 or sin cos      0cossinsin2    360,180,0 1tan  Q1, Q3 tan 1 45        ,180    45 ,180 45 45 ,225           360,225,180,45,0
  • 60. 1992 Extension 1 HSC Q2a)2 (v) 2sin sin 2 , 0 360       cossin2sin2 2  0cossin2sin2 2   sin 0 or sin cos      0cossinsin2    360,180,0 1tan  Q1, Q3 tan 1 45        ,180    45 ,180 45 45 ,225           360,225,180,45,0 Exercise 2D; 2ac, 4ac, 5adgi, 9adgj, 10bdfij, 16, 24*