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Surds, Types of Surds

Surd:- If  is a positive integer ( n>1 ) and  rational number a (>0) isnot the nthpower of any rational number, then is called a surd of  nth order.

 If a  is a positive rational number which can not be expressed as the nth power some rational number, then the rational number  is called surd or radical .

The symbol  is called radical sign,

n is called the order of the surd ( or radical ) and a is called radicand.

సంఖ్యవ్యవస్థ గణితం (Number System)

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