The function f:R R, defined by f(x)=[x], where [x] denotes the greatest integer less than or equal to x, is

JEE Main Mathematics question

The function , defined by , where denotes the greatest integer less than or equal to , is

Answer: (D)

One-one: and , so different inputs share an image — not one-one. Onto: the values of

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Question ID VK-007538