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Suppose f (x) is differentiable at x=1 a...

Suppose `f (x)` is differentiable at `x=1 and lim _(h to0) (f(1+h))/(h) =5.` Then `f '(1)` is equal to-

A

6

B

5

C

4

D

3

Text Solution

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The correct Answer is:
B
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