` (1-tan theta )^2 + ( 1+ tan theta)^2 =? `

Prove that : (1 - tan^(2) theta)/(1 + tan^(2) theta) = cos^(2) theta - sin^(2) theta

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

Evaluate : ((1+tan theta)/(1-tan theta))^(2)

Prove each of the following identities : (i) (1- tan^(2) theta)/(1+ tan^(2) theta) = ( cos^(2) theta - sin^(2) theta) (ii) (1- tan^(2) theta)/(cot^(2) -1) = tan^(2) theta

If (1+tan^2 theta)+(1+ (tan^2 theta)^-1)=k , then sqrtk =? यदि (1+tan^2 theta)+(1+ (tan^2 theta)^-1)=k ,है, तो sqrtk =?

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

Prove that (1+tan theta)/(1-tan theta) = (1 - sin 2 theta)/(cos 2 theta) .

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

If tan theta + (1)/(tan theta) = 2, then tan^2 theta + (1)/(tan^2 theta) is equal to