Hi all, I am stuck on this problem. Help would be appreciated.
Here's the identity I need to prove (will only take a sec to read): View image: Untitled
Here's my attempt: http://s13.postimage.org/jkhubi4lz/DSC03534.jpg
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Change the secant and cosecant to cosine and sine. Then use Sum-Product identity then simplify the expression.
We are expected to know these two identities: . . . .
We have: . . . . . . . . . .
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