" Prove that: "cos^(2)theta(1+tan^(2)theta)=1

prove that cos^2theta(1 + tan^2 theta) = 1

Prove that: cos^2theta(1+tan^2theta)=1 .

tan theta+(1)/(tan theta)=2 then prove that tan^(2)theta+(1)/(tan^(2)theta)=2

Prove that : (tan^(2)theta)/(1+tan^(2)theta)+(cot^(2)theta)/(1+cot^(2)theta)=1

Prove that : (tan^(2)theta)/(1+tan^(2)theta)+(cot^(2)theta)/(1+cot^(2)theta)=1

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

Prove that (cos^(2) theta)/(1-tan theta)+(sin^(3) theta)/(sin theta - cos theta) =1 + sin theta cos theta .

Prove that (tan^(3)theta)/(1+tan^(2)theta)+(cot^(3)theta)/(1+cot^(2)theta)=sec theta cos ec theta-2sin theta cos theta

tan theta+1/tan theta=2 then prove that tan^2theta+1/tan^2theta=2

If tan^4theta - tan^2 theta= 1 , then prove that cos^4theta+ cos^2theta = 1