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Q.

The domain of the function fx=x2-x2, where [x] is the greatest integer less than or equal to x, is

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a

R

b

0,+∞ 

c

-∞,0

d

None of these

answer is D.

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Detailed Solution

x2-x2≥0 or x2≥x2

This is true for all non-negative values of x and all negative
integers x.

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