` tan theta / (1+ tan^2 theta )`

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

If cos theta = (3)/(5) , then the value of (sin theta - tan theta + 1)/( 2 tan^(2) theta) is

Prove that (i) (1)/(("cosec" theta- cot theta ))=("cosec" theta + cot theta) (ii) ((sec theta - tan theta))/((sec theta + tan theta))=(1+ 2tan^(2) theta - 2 sec theta tan theta)

(tan theta + 2) (2 tan theta + 1) = 5 tan theta + sec^2 theta . Write 'True' or 'False' and justify your Solution.

What is (2 tan theta)/(1+tan^2theta) equals to ?

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

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 =?