Prove that the greatest integer function f:R→R, given by f(x) =[x], – InterviewSolution

1.	Prove that the greatest integer function f:R→R, given by f(x) =[x], is neither one-one nor onto, where [x] denotes the greatest integer less than or equal to x.
Answer» Prove that the greatest integer function $f : R \to R$ , given by f(x) =[x], is neither one-one nor onto, where [x] denotes the greatest integer less than or equal to x.

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