" iii) "cos^(2)theta(1+tan^(2)theta)=1

Prove the following trigonometric identities: (1-sin^(2)theta)sec^(2)theta=1( ii) cos^(2)theta(1+tan^(2)theta)=1

Prove the following trigonometric identities: (i) (1-sin^2theta)sec^2theta=1 (ii) cos^2theta(1+tan^2theta)=1

Write the value of sin^(2)theta cos^(2)theta(1+tan^(2)theta)(1+cot^(2)theta).

If sin^(2)theta cos^(2)theta(1+tan^(2)theta)(1+cot^(2)theta)=lambda then find the value of lambda.

Find the general values of theta from the following equations: i) sin^(2)theta=3/4 ii) cos^(2)theta=1/2 iii) tan^(2)theta=1/3

Find the general values of theta from the following equations: i) sin^(2)theta=3/4 ii) cos^(2)theta=1/2 iii) tan^(2)theta=1/3

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

If theta=30o, verify that: ( i )cos2 theta=(1-tan^(2)theta)/(1+tan^(2)theta)( ii) cos3 theta=4cos^(3)theta-3cos theta

cos 2 theta is not equal to ................... A) 2 cos ^(2) theta -1 B) 1- 2 sin ^(2) theta C) (1+ tan ^(2) theta)/( 1- tan ^(2) theta) D) (1- tan ^(2) theta)/(1+ tan ^(2) theta)

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