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f:(2,4)rarr(1,3),f(x) = x - [(x)/2] , wh...

`f:(2,4)rarr(1,3),f(x) = x - [(x)/2]` , where [.] is a greatest integer function then `f^(-1)(x)` = ......

A

2x

B

`x+[x/2]`

C

`x+1`

D

does not exist

Text Solution

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The correct Answer is:
C
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KUMAR PRAKASHAN-RELATIONS AND FUNCTIONS -Textbook based MCQs
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  14. If S is defined on R by (x,y) inR hArr xy ge 0 . Then S is ...........

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  15. Which of the following defined on Z is not an equivalence relation ?

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  19. For a**b = a +b + 10 on Z , the identity element is ........

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