SOLUTION: prove this identity: tan to the second power theta + sec to the second power theta = 2 sec to the second power theta - 1

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Question 34343: prove this identity: tan to the second power theta + sec to the second power theta = 2 sec to the second power theta - 1
Answer by longjonsilver(2297)   (Show Source): You can put this solution on YOUR website!
Prove that


This is a straightforward one to prove, since we know that .

Using, this as we can sub this into the right hand side as:



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jon.

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