Question

Is the sqrt2 over 8 rational or irrational? I believe it is irrational.

Answer 1

I also need to know why.

Answer 2

your belief is correct

the reason is because √2 is irrational
... all non-integer roots of integers are irrational

Answer 3

I meant that it is the sqrt2 of 2 of 8 it is only the 2 that is sqrt2. This being said is what you say still true?

Answer 4

if this is what you mean ... (√2) / 8

then you're good