Question

Processus that 4-5 root 2

Answer 1

let ..........

4-5 root2 be a rationl number

=>4-5 root 2 = a/b

= 4-a/b = 5 root2

= 4b-a/5b= root2

now if p is a positive prime then root p is

irrational.

therefore root 2 is an irrational

hence 4-5root 2 is irrational.

I hope it's help you......