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

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

Prove the following identities: (sec-tan theta)/(sec theta+tan theta)=1-2sec theta tan theta+2tan^(2)theta

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

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

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

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

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

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

If : sec theta * tan theta (sectheta + tan theta) + (sec theta - tan theta) = sec^(n) theta + tan^(n) theta, "then" : n = A)1 B)2 C)3 D)4

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