Question

is -7 - root 2 rational or irrational number ​

Answer 1

Hey !

Answer:

It is an irrational number

Step-by-step explanation:

We all know that $\sqrt{2}$ is an irrational number , and we also know that :

The sum or difference between an irrational and a rational number is always rational .

Therefore , $\sqrt{2}$ is an irrational number .

Hope it helped you !