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Let us define a region R in xy-plane as ...

Let us define a region R in xy-plane as a set of points (x,y) satisfying `[x^2]=[y]` (where [x] denotes greatest integer `le x)`,then the region R defines

A

a parabola whose axis is horizontal

B

a parabola whose axis is vertical

C

integer point of the parabola `y=x^2`

D

None of the above

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The correct Answer is:
D
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