Attachment 25717

I'm ending up with this equation, but with no idea how the answer was achieved. Can someone help explain this to me? Thanks in advance.

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- Nov 14th 2012, 11:06 AMfogownzHelp with algebra used to solve trig problems(solved)
Attachment 25717

I'm ending up with this equation, but with no idea how the answer was achieved. Can someone help explain this to me? Thanks in advance. - Nov 14th 2012, 11:23 AMskeeterRe: Help with algebra used to solve trig problems.

rationalize the denominator ...