In triangle ABC, angle A is greater than...

In triangle ABC, angle A is greater than angle B. If the measure of angles A and B satisfy the equation `3sinx-4sin^3x-k=0`. Find the value of angle C (A) `pi/3` (B) `pi/2` (C) `(2pi)/3` (D) `(5pi)/6`

A

`pi//3`

B

`pi//2`

C

`2pi//3`

D

`5pi//6`

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C

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