# Prove that

Submitted by alpha on Mon, 04/21/2008 - 04:59.

{(1+tan^2A)/(1+cot^2A}={(1-tanA)/(1-cotA)}^2=tan^2A

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## Prove that
Submitted by alpha on Mon, 04/21/2008 - 04:59.
{(1+tan^2A)/(1+cot^2A}={(1-tanA)/(1-cotA)}^2=tan^2A |