`sin 2x sin 4x` का अवकलन कीजिये|

sin 2x.sin 3x.sin 4x

What is the value of [(sin7x- sin5x)/ (cos 7x + cos 5x)]- [(cos 6x-cos 4x)/ (sin 6x + sin 4x)] ? [(sin7x- sin5x)/ (cos 7x + cos 5x)]- [(cos 6x-cos 4x)/ (sin 6x + sin 4x)] का मान क्या है?

Solve sin 2x - sin 4x + sin 6x = 0.

What is the value of {(sin 4x+ sin4y} [(tan 2x- 2y)]}//(sin 4x -sin4y) ? {(sin 4x+ sin4y} [(tan 2x- 2y)]}//(sin 4x -sin4y) का मान क्या है?

Solve sin 2x - sin 4x + sin 6x = 0 .

Solve sin 2x - sin 4x + sin 6x =0.

Solve sin 2x - sin 4x + sin 6x =0.

Solve sin 2x - sin 4x + sin 6x =0.

Solve sin 2x - sin 4x + sin 6x =0.

Solve sin 2x - sin 4x + sin 6x =0.