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Monotonically Increasing Functions

The domain of...

Question

$T h e d o m a i n o f t h e f u n c t i o n f (x) = \frac{1}{x - [x]}$

A

N

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B

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C

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D

R - N

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Solution

The correct option is C
$O b s e r v e t h a t w h e n x i s a n i n t e g e r x = [x] . H e n c e, f (x) i s n o t d e f i n e d w h e n x i s a n i n t e g e r . D o m a i n i s R e x c l u d i n g 0, \pm 1, \pm 2, . . . .$

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