Question

-2 sin 3xsin 2x
2 sina x
= tan x = RHS
2 sin xcos x
Prove that
sin 9x + sin 7 x + sin 5x +sin 3x
=tan 6x
cos 9 x + cos 7x + cos 5x + cos 3x
(sin 9x + sin 3x) + (sin 7x + sin 5x)
as: LHS =
(cos 9x+cos3x)+(cos 7x + cos 5x​

Answer 1

Explanation:

PLEASE MARK AS BRAINLIEST

ccbngnhjgfyfgjgjhhgbvhvughcgchchvigivig