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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- Jul 13th 2012, 01:57 PMFrederickTrigonometric identity proof
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 - Jul 13th 2012, 03:09 PMCbarker1Re: Trigonometric identity proof
Change the secant and cosecant to cosine and sine. Then use Sum-Product identity then simplify the expression.

- Jul 13th 2012, 06:57 PMSorobanRe: Trigonometric identity proof
Hello, Frederick!

We are expected to know these two identities:

. .

. .

Quote:

We have: .

. . . . . . . . .