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

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

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

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

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

prove that (sec theta-tan theta-1)/(sec theta+tan theta-1)=tan theta-sec theta

Prove (sec theta+tan theta)/(cos ec theta+cot theta)=(cos ec theta-cot theta)/(sec theta-tan theta)

(sec theta+tan theta)/(csc theta+cot theta)=(csc theta-cot theta)/(sec theta-tan theta)

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

Simplify sectheta[(sec theta,tan theta),(tan theta,sec theta)]-tan theta[(tan theta, sec theta),(sec theta, tan theta)]

(tan theta)/(sec theta-1)+(tan theta)/(sec theta+1)=2cos ec| theta