Show that 5-root 2 is an irrational

1.	Show that 5-root 2 is an irrational
Answer» Let 5root2 be a rational number 5root2=p\\qRoot2=p\\5qNow p\\q is also a rational number But we know that root2 is irrational It contradicts our assumption Hence 5root2 is an irrational number

Discussion