`(1+tan^2a)/(1+cot^2a)`=`((1-tana)/(1-cota))^2`=`tan^2A`

prove that ((1-tanA)/(1-cotA))^2=tan^2A

Prove: (1+tan^2theta)/(1+cot^2theta)=((1-tantheta)/(1-cottheta))^2=tan^2theta

prove (1 + tan^2A) / (1 + cot^2A) = [(1 - tan A) / (1 - cotA)] ^2 = tan^2A

Prove: (1-tan^2A)/(cot^2A-1)=tan^2A

The value of (3-tan^2A)/(1-3tan^2A)+(3-tan^2B)/(1-3tan^2A)+(3-tan^2C)/(1-3tan^2\ \ C) is a. 1 b. \ 0 c. \ 1+sqrt(3) d. 1-sqrt(3)

Prove the identity ((1-tan theta)/(1-cot theta))^(2)=tan^(2)theta

Prove that: ("tan"(A+B))/("cot"(A-B))=\ (tan^2A-tan^2B)/(1-tan^2Atan^2B)

Prove the following identity: (tan^3theta)/(1+tan^2theta)+(cot^3theta)/(1+cot^2theta)=(1-2sin^2thetacos^2theta)/(sintheta\ costheta)

Prove : (tan^2A)/(1+tan^2A)+(cot^2A)/(1+cot^2A)=1

Prove that : (tan^(2)theta)/(1+tan^(2)theta)+(cot^(2)theta)/(1+cot^(2)theta)=1