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31 October, 00:01

Write sin3xCos2x + cos3xsin2x as a single trigonometric function

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  1. 31 October, 03:56
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    For any angles formula is:

    sin (a+b) = sinαcosβ+cosαsinβ

    In our exercise:

    α=3x β=2x

    sin3xcos2x+cos3xsin2x=sin (3x+2x) = sin (5x)

    Result is : sin5x
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