cos^(2)A+(1)/(1+cot^(2)A)=1

Prove: cos^2A+1/(1+cot^2A)=1

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

Simplify: cos^(2)theta+(1)/(1+cot^(2)theta):

The value of (1 - cos^(2) theta) (1 + cot^(2) theta) is ……….. .

cos^(2)theta+1/(1+cot^(2)theta)=1

Prove each of the following identities : (i) cot^(2) theta - (1)/(sin^(2) theta)=-1 " " (ii) tan^(2) theta - (1)/(cos^(2) theta)=-1 (iii) cos^(2) theta + (1)/((1+ cot^(2) theta))=1

Prove the following identities: (cos^2A-1)(cot^2A+1)=-1

(tan ^ (3) A) / (1 + tan ^ (2) A) + (cot ^ (3) A) / (1 + cot ^ (2) A) = sec A cos ecA-2sin A cos A

(cos^(2)theta-1)(cot^(2)theta+1)+1= ………….. .

(tan A)/((1+tan^(2)A)^(2))+(cot A)/((1+cot^(2)A)^(2))=sin A cos A