solve cot^2A+cosA=sin^2A
Answers
Answered by
0
cot 2A + tan A
= cos 2A/sin 2A + sin A/cos A
= (cos 2A cos A + sin 2A sin A) / sin 2A cos A
Using the compound angle formulae,
we know that cos (2A - A ) = cos 2A cos A + sin 2A sin A...
therefore,
= cos (2A - A) / sin 2A cos A
= cos A / sin 2A cos A
= 1/ sin 2A
= cosec 2A ( proven)
Good luck !!!
Similar questions