Prove that: `sin^2 6x-sin^2 4x=sin2xsin10 x`

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

sin^(2)6x-sin^(2)4x=sin2xsin10x

Prove that: sin^(2)6x-sin^(2)4x=s in2xs in10x

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

Prove that: (i) "sin"^(2)6x-"sin"^(2)4x="sin" 2x sin 10x (ii) cos^(2)2x-cos^(2)6x="sin" 4x sin 8x .

Prove that: sin2x+2sin4x+sin6x=4cos^(2)x sin4x

Prove that: cos^(2)2x-cos^(2)6x=sin4x sin8x

Prove that sin x + sin 3x + sin 5x + sin 7x=4 sin 4x cos 2x cos x.

Prove that: (i) sin 3x+"sin" 2x-"sin" x = 4 sin x cos((x)/(2))cos((3x)/(2)) (ii) ("sin" 3x+"sin" x)"sin" x+(cos 3x-cos x)cos x=0.

Prove that: quad sin2x+2sin4x+sin6x=4cos^(2)x sin4