cosec A-2cot2A cos A=2sin A

cosec A- 2cot 2A cos A=

cosec A -2 cot 2A cos A=

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

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

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

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

(cosec A - sin A)^2 + (sec A - cos A)^2 - (cot A - tan A)^2 is equal to

(sin A+cosec A)^(2)+(cos A+sec A)^(2)=7+tan^(2)A+cot^(2)A