Question

I'm confused here. Umm..

Is 5/√2 is an irrational number?? because I'm very sure that √2, √3 and pi are irrational. But this is kinda confusing

Answer 1

Yes √2 is irrational indeed. So multiplying (or dividing) a rational number by an irrational will still be irrational.

Answer 2

@kirbykirby so is an irrational number??

Answer 3

yes

Answer 4

:)

Answer 5

if you multiply or divided by an irrational number , you will most often end up with a new irrational number

sometimes you won't: example, sqr(2)/sqr(2) = 1
or sqr(2)*sqr(2) = 2

but unless the answer is obviously not irrational, it will be irrational