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Mathematics
Let f(x)=[x], where [x] denotes the greatest integer contained in x . Which one of the following is correct?
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Q. Let $ f(x)=[x], $ where $ [x] $ denotes the greatest integer contained in $ x $ . Which one of the following is correct?
Jamia
Jamia 2011
A
$ f(x) $ is one-to-one
B
$ f(x) $ is onto
C
Domain of $ f(x) $ is set of renumbers and range of $ f(x) $ is set of integers $ x $
D
Both domain and range of $ f(x) $ are set of real numbers
Solution:
We know domain of the greatest integer function is the set of real number R and range is the set of integers.