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Questions  

The number of values of sin x satisfying  sin 5x = 5 sin x is

a
0
b
1
c
2
d
3

detailed solution

Correct option is B

We have 16sin5⁡x−20sin3⁡x+5sin⁡x−5sin⁡x⇒sin3⁡x16sin2⁡x−20=0⇒sin⁡x=0, only one value

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