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JEE Main 9 April 2017 Paper Solved Paper

Section: Mathematics

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Question : 61

Total: 90

The function f:N→N defined by f(x)=x−5[

], where N is the set of natural numbers and [x] denotes the greatest integer less than or equal to x, is :

[Main 9 April 2017]

one-one and onto.
one-one but not onto.
onto but not one-one.
neither one-one nor onto.

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