" 7."int(sec theta-tan theta)^(2)=(1-sin theta)/(1+sin theta)

(sec theta-tan theta)^2 (1+sin theta)^2 div sin^2 theta

Prove that (tan theta+ sin theta)/(tan theta-sin theta)= (sec theta+1)/(sec theta-1) OR Prove that (cosec theta- cot theta)^(2)=(1-cos theta)/(1+cos theta)

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

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

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

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

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

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

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