" 7."quad (sec theta-tan8)^(2)=(1-sin theta)/(1+sin theta)

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

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

Prove that (1+sin theta)/(1-sin theta)-(1-sin theta)/(1+sin theta)=4sec theta tan theta

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

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

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