Evaluate :
`( 1 + tantheta ) ( 1 - tantheta )( 1 + tan^2theta )`

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

tantheta .tan(90^(@) - theta) =

Solve: (1-tantheta)(1+sin2theta)=(1+tantheta)

Solve: tan3theta+tantheta=0

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

tantheta+tan2theta=tan3theta

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 : (tantheta+2)(2tantheta+1)=5tantheta+2sec^(2)theta