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▪️Grade - 9
▪️Chapter - Polynomials
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Answer 1

Question :

Classify as rational or irrational.

$\tt (3 + \sqrt{23}) - \sqrt{23}$

Concepts :

Rational Numbers : The numbers which can be represented in the form of p/q are called rational numbers.

Irrational Numbers : The numbers which can not be represented in the form of p/q are called irrational numbers.

Solution :

$\tt (3 + \sqrt{23}) - \sqrt{23}$

$\tt \implies 3 + \sqrt{23} - \sqrt{23}$

$\tt \implies 3 + \cancel{\sqrt{23}} - \cancel{\sqrt{23}}$

$\tt \implies 3$

After simplifiing we get 3.

3 is a rational numbers

Given Number is Rational Number.

Answer 2

it is rational number

$= > (3 + \sqrt{23} ) - \sqrt{23}$

$= > 3 + \sqrt{23} - \sqrt{23}$

$= 3$

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