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In mean value theorem, f(b) - f(a) = (b - a)f'(c) if a = 4, b = 9 and f(x) = √x, the value of c is

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In mean value theorem, f(b) - f(a) = (b - a)f'(c) if a = 4, b = 9 and f(x) = √x, the value of c is 

(A) 8.00 

(B) 5.25 

(C) 4.00 

(D) 6.25

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Answer is (D) 6.25

We have

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