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Q: We define a function first:

[X]up = the smallest integer

**bigger**than X.

**[[**so, for example, [-2]up = -1

[-1.4]up = -1 , [-1]up = 0

[0.4]up=1 , [17]up =18

etc.

**]]**

Here is a relation:

n[X]up = [nX]up

Find the domain of this relation for n and the domain for X. You must

**Prove**your answer

((Just to give another question, as an example, if the relation were:

X

^{2}+n

^{2}=4, the domain for X is -2

__<__X

__<__2

the domain for n is -2

__<__n

__<__2

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