" 29."sin2x sin x

Prove that sin x + sin 2x + sin 3x = sin 2x (1 + 2 cos x )

Solve the following equation : (i) sin^2x - 5 sin x + 4 = 0 (ii) 12x^3+8x=29x^2-4 .

sin ^(2) 6x - sin ^(2) 4x = sin 2x sin 10x

sin ^(2) 6x - sin ^(2) 4x = sin 2x sin 10x

sin ^(2) 6x - sin ^(2) 4x = sin 2x sin 10x

sin ^(2) 6x - sin ^(2) 4x = sin 2x sin 10x

Prove the following: sin^2 6x-sin^2 4x = sin 2x sin 10x

If f(x) = |(sin x + sin 2x + sin 3x, sin 2x , sin 3x),(3 + 4 sin x, 3, 4 sin x),(1 + sin x, sin x, 1)| then the value of int_0^(-pi//2) f(x) dx equals :

sin ^ (2) 6x-sin ^ (2) 4x = sin2x sin10x

Prove that: sin^(2)6x-sin^(2)4x=sin2x sin10x