UPSC NDA I 2017 Mathematics Solved Paper

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Question : 64 of 120

Marks: +1, -0

If F(x)=√9−x2, then what is

lim

x→1

‌‌

F(x)−F(1)

x−1

equal to ?

[NDA I 2017]

−
1
4√2
1
8
−
1
2√2
1
2√2

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