SOLUTION: How to find the identify? Sec^2(x) - sin^2(x) = cos^2(x) + tan^2(x)

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Question 1023431: How to find the identify?
Sec^2(x) - sin^2(x) = cos^2(x) + tan^2(x)
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
You meant: How to prove the identity, right?
We prove it this way.
Start with the identity sec%5E2%28x%29+=+1%2Btan%5E2%28x%29
==>
==> sec%5E2%28x%29+-+sin%5E2%28x%29+=+cos%5E2%28x%29+%2Btan%5E2%28x%29, and the original identity is proved...