(1+tan^2theta) sin^2theta

If theta is an acute angle and sintheta=costheta , find the value of 2tan^2theta+sin^2theta-1

Find the value of tan^2theta-sin^2theta-tan^2thetasin^2theta

If theta=45∘ find the value of tan^2theta + 1/sin^2theta

Prove that : tan^(2)theta-sin^(2)theta=tan^(2)thetasin^(2)theta

If theta=30^@ , verify that: (i) tan2theta=(2tantheta)/(1-tan^2theta) (ii) sin2theta=(2tantheta)/(1+tan^2theta)

The number of roots of (1-tan theta) (1+sin 2 theta)=1+tan theta for theta in [0, 2pi] is

Solve the equation (1-tan theta) (1+ sin 2theta) = 1 + tan theta

Prove the following identity: (tan^3theta)/(1+tan^2theta)+(cot^3theta)/(1+cot^2theta)=(1-2sin^2thetacos^2theta)/(sintheta\ costheta)

Prove the identities : (1+tan^2 theta) (1-sin theta) (1+sin theta) =1

If theta in (pi//4, pi//2) and sum_(n=1)^(oo)(1)/(tan^(n)theta)=sin theta + cos theta , then the value of tan theta is