express in terms of the first power of cosine: (cos^2(x))(sin^2(x))
how do i solve??
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We're expected to know these Half-angle Identities: . . Express in the first power of cosine: .
We have: . . . . . . . .
Last edited by mr fantastic; Mar 17th 2009 at 02:35 AM.
Reason: No edit, just flagging the reply as having been moved from a thread where the question was repeat posted.
Hello jrose011 Originally Posted by jrose011 express in terms of the first power of cosine: (cos^2(x))(sin^2(x))
how do i solve?? I assume that this means that you shouldn't have any power higher than 1, so you'll have to use the double-angle identities: and to get:
Then do the same again by expressing in terms of .
Can you complete it now?
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