UPSC NDA I 2018 Mathematics Solved Paper

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Question : 85 of 120

Marks: +1, -0

For f to be a function, what is the domain of f, if f(x)=

1

√|x|−x

?

[NDA I 2018]

(−∞, 0)
(0, ∞)
(−∞, ∞)
(−∞, 0]

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