Question

Help Me Plz!!!!!! THX!!!!!!!!!!

Answer 1

`√(5)` is irrational

A rational number can be expressed in the form

`(a)/(b)` where a, b ∈ Z ( integers )

`(-9)/(5)` is in this form → rational

`√(5)` cannot be expressed in this form → irrational

`(7)/(3)` is in this form → rational

`√(9)` = ± 3 and
`(3)/(1)`, -
`(3)/(1)` → rational