(i) `(1-cos A)/(sin A)=(sin A)/(1+cos A)`

(1-cosA)/(sin A)=(sin A)/(1+cos A

Prove the following identities : (1 - cos A)/(sin A) + (sin A)/ (1 - cos A) = 2 cosec A

(cos A)/(1-sin A)=(1+cos A+sin A)/(1+cos A-sin A)

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

Prove that: ((1+ cos A)/(sin A))^(2)= (1 + cos A)/(1-cos A)

(1- sin A - cos A)^2 = 2 (1-sin A) (1-cos A)

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

Show that, sqrt((1-"cos"A)/(1+"cos"A))=("sin"A)/(1+"cos"A)

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

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