Question

prove that 1 +cos 2A +sin 2A/ 1- cos 2A+ sin 2A= cot a

Answer 1

The solution is explained in the attached pic. Hope it helps :) Have a great day.

Answer 2

Answer:

cot A

Step-by-step explanation:

L.H.S,

= (1 + cos 2A + sin 2A) / (1 - cos 2A + sin 2A)

= (2 cos^2 A + 2 sin A cos A) / (2 sin^2 A + 2 sin A cos A)

= 2cos A (cos A + sin A) / 2sin A (cos A + sin A)

= cos A / sin A

= R.H.S

[PROVED]

HOPE IT WILL HELP YOU