UPSC NDA I 2014 Mathematics Paper

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Question : 91 of 120

Marks: +1, -0

If f(9)=9 and f′(9)=4 then what is

lim

x→9

√f(x)−3

√x−3

equal to ?

[NDA I 2014]

36
9
4
Noen of the above

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