Surds and Indices : Rules explained with Examples

a) Surds :

The surd is represented with symbol √ .The symbol √ is equals to ½.
If we have a number and we are not able to obtain its root. It is called a surd.
The roots of those numbers which cannot be exactly obtained.

Like : √2,√3,√5,√6,√7 and so on. 

Mixed Surds : A surd that /which we get by multiplying a surd and a rational number together are called mixed surd.

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