## Prove that

Posted April 21st, 2008 by alpha

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

Posted April 21st, 2008 by alpha

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