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The function f(x) = [x], where [x] denot...

The function f(x) = [x], where [x] denotes the greatest integer not greater than x, is

A

continuous only at rational values of x

B

continuous for real values of x

C

continuous only a positivie integral values of x

D

continuous for all non - integral values of x

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The correct Answer is:
D
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