Number System | Representing Irrational Numbers on the Number Line | CBSE Class 9 | Maths

Number System | Representing Irrational Numbers on the Number Line | CBSE Class 9 | Maths

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Hello students, here we are going to study the very important topic as Representing irrational numbers on the number line form CBSE class 9 mathematics.

Introduction of Irrational Numbers

An irrational number is a real number that cannot be expressed as a ratio of integers, for example, √ 2 is an irrational number.
Again, the decimal expansion of an irrational number is neither terminating nor recurring.

How do you know a number is irrational? The real numbers which cannot be expressed in the form of p/q, where p and q are integers and q ≠ 0 are known as irrational numbers.
For Example √ 2 and √ 3 etc. Whereas any number which can be represented in the form of p/q, such that, p and q are integers and q ≠ 0 is known as a rational number.

Rational Numbers- A number that can be expressed as a ratio of two number (p/q form) are termed as Rational Number.

Irrational Numbers- A number that cannot be expressed as a ratio of two numbers are termed as Irrational Number.

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