Suppose \[f(x)\] is differentiable at \[x=1\] and \[\underset{h\to – McqOptions

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1.	Suppose \[f(x)\] is differentiable at \[x=1\] and \[\underset{h\to 0}{\mathop{\lim }}\,\frac{1}{h}f(1+h)=5\] , then \[f'(1)\] equals [AIEEE 2005]
A.	5
B.	6
C.	3
D.	4
Answer» B. 6

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