SOLUTION: Prove this identity cot^2x-cos^2x=cos^2x*cot^2x

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Question 362880: Prove this identity
cot^2x-cos^2x=cos^2x*cot^2x
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Let S=sin%28x%29, C=cos%28x%29, T=tan%28x%29,
.
.
1%2FT%5E2-C%5E2=C%5E2%2FT%5E2
1-T%5E2C%5E2=C%5E2
1-%28S%5E2%2FC%5E2%29C%5E2=C%5E2
1-S%5E2=C%5E2
highlight%28S%5E2%2BC%5E2=1%29
True.