Question

show that 3
$\sqrt{7}$
is an irrational
​

Answer 1

Let us assume that 3√7 is rational Here 3 is rational and √7 is rational. As we know, Product of two rational numbers is rational. But √7 is rational, which is contradictory to our assumption. So, 3√7 is irrationalRead more on Sarthaks.com - https://www.sarthaks.com/694694/prove-that-37is-irrational