Q .     The value of `c` of mean value theorem when `f(x)=x^3-3x-2 in [-2, 3]` is

BITSAT 2013
A

`\sqrt{\frac{7}{3}}`

B

` \sqrt{\frac{3}{7}}`

C

` \frac{\sqrt{7}}{3}`

D

` \frac{\sqrt{3}}{7}`

HINT

The definition of the mean value theorem says `f'(c) = \ frac{f(b) - f(a)}{b - a}` where `a < c < b`

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