Question

Find the value of [2 - h] + [2 + h], where h is really small. $(h\to 0orhtendstozero)$ and [x] is the greatest integer function

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Answer 1

[2 - h] means the greatest integer of 2 - h or values just before 2.

1 < 2 - h < 2 $\Rightarrow$ [2 - h] = 1

Similarly, $[2+h]=2$

$\Rightarrow Answer=2+1=3$