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sin x + sin2x + sin 3x = 0 if :...

`sin x + sin2x + sin 3x = 0` if :

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sin x + sin 3x + sin 5x =0

sin x + sin 3x + sin 5x =0

sin x + sin 3x + sin 5x =0

sin x + sin 3x + sin 5x =0

If 0 le x le (pi)/(2) , then the number of value of x for which sin x - sin 2x + sin 3x = 0 , is

If 0 le x le (pi)/(2) , then the number of value of x for which sin x - sin 2x + sin 3x = 0 , is

sin x sin 2x sin 3x

sin x sin 2x sin 3x

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

Prove that sin 3x + sin 2x - sin x = 4 sin x cos ""(x)/(2) cos "" ( 3x )/(2)