1.

sin 5xsin x is equal to(a) 16 cos4x-12 cos2x+1(b) 16 cos4x+12 cos2x+1(c) 16 cos4x-12 cos2x-1(d) 16 cos4x+12 cos2x-1

Answer» sin 5xsin x is equal to

(a) 16 cos4x-12 cos2x+1

(b) 16 cos4x+12 cos2x+1

(c) 16 cos4x-12 cos2x-1

(d) 16 cos4x+12 cos2x-1


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