Question

Every surd is a irrational number but
every irrational number need not to be a surd.Justify your answer​

Answer 1

Step-by-step explanation:

by definition,a surd is an irrational root of a rational number.So we now we know that surds are always irrational and they are always roots

for examples:-square root of 2 is a surd since 2 is rational and square root of 2 is irrational

similarly,cube root of 9 is also a surd since 9 is rational and cube root of 9 is irrational

on the other hand,is not a surd even though is irrational, because is not rational.