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In a triangle ABC ,angle A is greater th...

In a triangle ABC ,angle A is greater than B.If the measures of angles Aand B satisfy the equation `3sinx-4 sin^(3)x-k=0,0ltklt1`, then the measure of angle C, is

A

`pi//3`

B

`pi//2`

C

`2pi//3`

D

`5pi//6`

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The correct Answer is:
C
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