prove that sin a /1+cos a = cot a/2
Answers
Answered by
1
sin a /(1 + 2cos²a/2 -1)
= 2sin(a/2)cos(a/2 )/(2cos²a/2)
:- 2 and cos a/2 gets cancelled.
so, sin (a/2) / cos(a/2)
= cot (a/2).
Hope it help
= 2sin(a/2)cos(a/2 )/(2cos²a/2)
:- 2 and cos a/2 gets cancelled.
so, sin (a/2) / cos(a/2)
= cot (a/2).
Hope it help
Similar questions
Math,
7 months ago
Science,
7 months ago
Computer Science,
7 months ago
English,
1 year ago
English,
1 year ago