prove that
`((1-tan theta)/(1-tan theta))^2=tan^2 theta`

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

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

Prove that (tan^2 (2theta)-tan^2 theta)/(1-tan^2 (2theta) tan^2 theta)=tan (3theta)tan theta

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

Prove that (1+sin 2theta)/(1-sin 2theta) = ((1+tan theta)/(1-tan theta))^2

Prove that (tan theta)/(1-cot theta)+(cot theta)/(1-tan theta) = (sec theta cosec theta +1)

Prove that (1 - cos 2 theta)/( sin 2 theta) = tan theta.

prove that : (tan 2^n theta)/(tan theta) = (1+sec 2theta) (1+ sec 2^2 theta) (1+sec 2^3 theta) … (1+ sec 2^n theta)

(1+tan^2theta) sin^2theta

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