Cot^(2)theta-(1)/(sin^(2)theta)

Let (3 pi)/(4)

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

Write the value of cot^2theta-1/(sin^2theta) .

What is the value of (1+cot^(2)theta)sin^(2)theta

Prove the following trigonometric identities : cot^2theta-1/(sin^2theta)=-1 (ii) (1+tan^2theta)(1+sintheta)(1-sintheta)=1

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

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

The numerical value of (1)/(1+cot^(2)theta)+(3)/(1+tan^(2)theta)+2 sin^(2)theta will be

If 3(cot^(2)theta-cos^(2)theta)=1-sin^(2)theta,0^(@)ltthetalt90^(@), then the theta equal to