6sin8xcos8x which expression is equivalent?

sin8x

sin16x

3sin4x

3sin16x

I thought it was like

3(2sin8xcos8x)

3sin^2(2(8x))

3sin^2(16x) ?

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- June 9th 2009, 12:31 PM #1

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- June 9th 2009, 12:35 PM #2

- June 9th 2009, 12:37 PM #3

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- June 9th 2009, 12:38 PM #4

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- June 9th 2009, 12:39 PM #5

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- June 9th 2009, 12:48 PM #6