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Let f (x)= [x] where [x] denotes the gre...

Let `f (x)= [x]` where `[x]` denotes the greatest integer contained in x. Which one of the following is correct ?

A

both domain and range of `f(x)` are sets of real numbers

B

both domain and ranges of `f(x)` are sets of integers

C

domain of `f(x)` is set of real numbers and its range is set of integers

D

none of these

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The correct Answer is:
C
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