(tan theta+sec theta-1)/(tan theta-sec theta+1)

(tan theta+sec theta-1)(tan theta+1+sec theta)=(2sin theta)/(1-sin theta)

Prove that (sec theta+tan theta-1)/(tan theta-sec theta+1)=(cos theta)/(1-sin theta)

Prove that (sec theta+tan theta -1)/(tan theta -sec theta +1)=cos theta/(1-sin theta)

Prove that :(sec theta+tan theta-1)/(tan theta-sec theta+1)=(cos theta)/(1-sin theta)

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

tan2 theta(sec8 theta-1)=tan8 theta(sec4 theta-1)

Evaluate : ((sec theta+tan theta-1)/(tan theta-sec theta+1))^(2) =

( sec theta + tan theta -1)/( tan theta - sec theta +1)

Prove that: (sec theta + tan theta -1)/(tan theta - sec theta +1) = (cos theta)/(1- sin theta)

Prove the following identities: (sec-tan theta)/(sec theta+tan theta)=1-2sec theta tan theta+2tan^(2)theta