Posted by **Jay** on Tuesday, November 20, 2007 at 12:01pm.

Can someone tell show me how to do this.

Show the product as a sum or difference

sin 6x cos 2x

- PreCal -
**Michael**, Tuesday, November 20, 2007 at 3:38pm
(sin6x)(cos2x)

You will need to use the double-angle identities to expand both sin6x and cos2x.

As a hint, you will have to use sin(3*2x) for the double-angle of sine.

If you want to work on that, then we can critique your thinking.

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