Which is a mixed surd?

Which is a mixed surd?
  1. $3\sqrt{2}$
  2. $\sqrt{7}$
  3. $\sqrt{11}$
  4. $\sqrt[3]{4}$

Solution

Mixed surd: irrational radical with a rational coefficient $\ne 1$.

Asked in: MH-SSC-9

Practice more Real Numbers questions on Aicharya