Question

What are surds or Radicals​.

Answer 1

If a is rational number and n is a positive integer such that the nth root of a is an irrational number, then a1/n is called a surd or radical. Example: √2, √3, √5 etc. If is a surd then 'n' is known as order of surd and 'a' is known as radicand.

Answer 2

Answer:

In mathematics, an nth root of a number x is a number r which, when raised to the power n, yields x: {\displaystyle r^{n}=x, } where n is a positive integer, sometimes called the degree of the root. A root of degree 2 is called a square root and a root of degree 3, a cube root.