[1+cot^(2)A],[18.(1+tan^(2)theta)(1-sin theta)(1+sin theta)=1]

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

Prove each of the following identities : (1+ tan^(2) theta)(1+ cot^(2) theta)=(1)/((sin^(2) theta- sin^(4) theta))

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

(1+tan^(2)theta)/(1+cot^(2)theta)=((1-tan theta)/(1-cot theta))^(2)

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

(cos theta)/(1 - tan theta) + (sin theta)/(1 - cot theta) =……...

What is the value of (2(1-sin^2 theta) cosec^2 theta)/(cot^2 theta(1+tan^2 theta))-1 ? (2(1-sin^2 theta) cosec^2 theta)/(cot^2 theta(1+tan^2 theta))-1 का मान क्या है?

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

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

(tan theta+sec theta-1)(tan theta+1+sec theta)=(2sin theta)/(1-sin theta)