36.cosec A-2cot2A cos A=

cosec A- 2cot 2A cos A=

cosec A -2 cot 2A cos A=

cosec A -2 cot 2A cos A= ................ A) 2 sin A B) sec A C) 2 cos A cot A D) cos A

Prove that cosec A -2 cot 2 A cos A = 2 sin A.

( cos A - sin A + 1 ) / ( cos A + sin A - 1 ) = cosec A + cot A cosec A + cot A , = using the identity cosec ^ 2 A = 1 + cot^ 2 A .

Show that (cot A - cos A)/(cot A + cos A) = ( cosec A - 1)/(1 + cosec A)

Prove the following : (cot A - cos A)/(cot A + cos A) = (cosec A -1)/(cosec A + 1) .

Prove that (cot A - cos A)/(cot A + cos A) = (cosec A -1)/(cosecA+1) .

The value of (cosec 2A - cot 2A) is-