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Question

If I < x < I +1, Find [-x], where I is an integr


A

-I

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B

-I+1

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C

-I-1

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D

I-1

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Solution

The correct option is C

-I-1


[x] is the greatest integer function
If I < x < I +1 means x is between I and I +1.
-I -1 < -x < -I, -x will lie between (-I-1) and -I
[-x] = -I - 1


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