Question

Show that 4 2 is an irrational number.​

Answer 1

Answer:

Bt dear 42 is a rational number..

Answer 2

Answer:

do like this

Step-by-step explanation:

Let us assume that 4√2 is a rational number.  So, we can find co-prime integers ‘a’ and ‘b’ (b ≠ 0) such that  4√2 = a/b  ∴ √2 = a/4b  Since, a and b are integers, a/4b is a rational number and so √2 is a rational number. 

but 42 is rational number