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If f(x)=(sin 3x)/(sin x), x != n pi , th...

If `f(x)=(sin 3x)/(sin x), x != n pi` , then find range of `f(x)`

A

`[-1.3]`

B

`[-infty, -1]`

C

`(3,+infty)`

D

`[-1.3]`

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The correct Answer is:
D
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