" viy "(sec theta+tan theta-1)(sec theta-tan theta+1)=2tan theta

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

(sec theta+ tan theta)(sec theta-tan theta) =____.

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

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

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

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

Prove: (vii) sec theta+ tan theta = (1)/( sec theta - tan theta)

Simplify: tan theta[(sec theta, tan theta),(tan theta, -sec theta)] + sec theta[(- tan theta, -sec theta),(-sec theta, tan theta)] .