1. A=
(3 5 2 6 )( 5 4 6 )
C x B x x A x
AC B
a a a
x y
2x 1 x 5
4 3 6
d,d'
d,d'
d' d
x y x y
x y
0 2 0
AB o ,A ,B
0 2 4
Sin Cos C os
A Cos
B C
x3 2x 2 x x2 x

2. x 2 x
2
x 4 x 2
x 2 7 x 12 x 2 8 x 16
x2 9 2x 8
1
2 x y
x x
x x
x x
x x

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