sin 2x-sin4x+sin6x=0

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Lokesh Loki
March 28, 2018, 12:57 p.m.

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Lokesh Loki
March 28, 2018, 1:02 p.m.

sin6x+sin2x-sin4x=0

2sin 6x+2x/2 .cos 6x-2x/2 -sin4x 

2sin 8x/2 cos 4x/2 - sin 4x 

2 sin 4x cos 2x -sin 4x 

2 sin 4x cos 2x -cos x 

2 sin 4x -2sin 2x+x/2 sin 2x-x/2

2 sin 4x -2 sin 3x/2 sin x/2

2 sin 4x -sin 3x/2 sin x/2

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