Let -1leple1, show that the equation 4x^...

Let `-1leple1`, show that the equation `4x^(3)-3x-p=0` has a unique root in the interval `[1/2,1]` and identify it.

A

`(cos^(-1)p)/(3)`

B

`cos((1)/(3)cos^(-1)p)`

C

`cos(cos^(-1)p)`

D

None of these

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