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In a Delta ABC angle A is greater than B...

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

A

`(pi)/(3)`

B

`(2 pi)/(3)`

C

`(pi)/(2)`

D

`(5 pi)/(6)`

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