Question

show that 4√2 is an irrational no​

Answer 1

Step-by-step explanation:

Let 4√2 is a rational number

Then, a/b=4√2

a/4b =√2

a/4b is a rational number but √2 is an irrational number

it is ours contradiction that 4√2 is a rational number

So, 4√2 is an irrational number

Hence proved

Hope it helps.......