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Classify the Following Numbers as Rational Or Irrational - CBSE Class 9 - Mathematics

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Question

Classify the following numbers as rational or irrational :-

` 2-sqrt5`

Solution

`2-sqrt5`

2 is a rational number and sqrt5 is an irrational number.

`therefore 2-sqrt5 " is an irrational number."`

∴ The difference of a rational number and an irrational number is irrational.

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APPEARS IN

 NCERT Solution for Mathematics Class 9 (2018 to Current)
Chapter 1: Number Systems
Ex. 1.50 | Q: 1.1 | Page no. 24

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Solution Classify the Following Numbers as Rational Or Irrational Concept: Operations on Real Numbers.
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