Evaluate `1+[(1+tantheta)/(1-tantheta)]^2`

((1-tantheta)/(1-cottheta))^(2)+1=

If A=[(1,-tantheta),(tantheta, 1)] [(1,tantheta),(-tantheta,1)]^-1 = [(a,-b),(b,a)] then (A) a=b=-1 (B) a=sin2theta, b=cos2theta (C) a=cos2theta, b=sin2theta (D) none of these

(tantheta+2)(2 tantheta+1)= ?

If sectheta+tantheta=5 , then the value of (tantheta+1)/(tantheta-1) is

Find all values of theta in the interval (-pi/2,pi/2) satisfying the equation (1-tantheta)(1+tantheta)sec^2theta+2^(tan^2theta)=0

Prove that (1+sin2theta)/(1-sin2theta)=((1+tantheta)/(1-tan theta))^(2)

The value of (2cos^(2)theta-1)((1+tantheta)/(1-tantheta)+(1-tantheta)/(1+tantheta)) is

If ((1,-tantheta), (tantheta,1))((1,tantheta), (-tantheta,1))^(-1)=[(a,-b), (b,a)], then (i) a=cos2theta (ii) b=1 (iii) b=sin2theta (iv) b=-1

If tantheta+(1)/(tantheta)=2 then the value of tan^(2)theta+(1)/(tan^(2)theta) is equal to :