Prove that : `1+tan theta tan 2theta = sec 2theta`.

Prove that 1 + tan 2 theta tan theta = sec 2 theta .

Prove that :1+tan theta tan2 theta=sec2 theta

prove that 1+tan theta tan2 theta=sec2 theta

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

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

Prove that (tan 8 theta)/(tan theta)=(1+ sec 2 theta)(1+ sec 4 theta)(1+ sec 8 theta)

Prove that (1+ tan^4 theta)/(1+ tan^2 theta) = sec ^2 theta-2 sin^2theta

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

prove that : (tan 2^n theta)/(tan theta) = (1+sec 2theta) (1+ sec 2^2 theta) (1+sec 2^3 theta) … (1+ sec 2^n theta)

prove that : (tan 2^n theta)/(tan theta) = (1+sec 2theta) (1+ sec 2^2 theta) (1+sec 2^3 theta) … (1+ sec 2^n theta)