Question

Proof that 4 root 2 is irratnational no

Answer 1

Step-by-step explanation:

4 root 2 irratnational no= 5.6568

Answer 2

4√2 is an irrational number can be by indirect proof

PROOF-

Let us assume that 4√2 is a rational number.

4√2=r

√2=r/4

Now, we know that √2 is an irrational number.

So our RHS(r/4) cannot be rational.

Therefore, our assumption that 4√2 is rational number is wrong.

Hence, 4√2 is an irrational number.

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