Question

Like surds are those surds which have same radicand but different order.

• A. zero is a natural number
• B. -1 is a whole number

Answer 1

The correct option is B

-1 is a whole number

Two surds ${}^m\sqrt{a}$ and ${}^n\sqrt{b}$ are called like surds if m = n , otherwise they are called unlike surds . For example $\sqrt{2}$ and $\sqrt{3}$ are like surds, however $\sqrt{2}$ and ${}^3\sqrt{2}$ are unlike surds.