Question

Solve for x the following equations :
sec (90° +, A) + x sin A tan (90° + A) = cos (90° + A).​

Answer 1

Answer:

sec (90 + A) + x sin Atan ( 90 + A ) = sin A

cosec A + x sin A cot A = sin A

cosecA + x sin A cos A / sin A = sin A

cosec A + x cos A = sin A

x cos A = sin A - 1/ sin A

x cos A = sin^2 A - 1 /sin A

x = -cos^2A / sin A . cos A

x = - cot A