SOLUTION: ..

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Question 442113:
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Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
If sin(x-3) = cos(2x+6), then the value of x is
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identity:
sin A=cos(90-A)
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sin (x-3) = cos(2x+6)
sin (x-3) = sin(90-2x-6)
x-3=90-2x-6
3x=87
x=29 (ans)