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In the Following Equation, Find Which Variables X, Y, Z Etc. Represent Rational Or Irrational Number: Y2 = 9 - Mathematics

In the following equation, find which variables x, y, z etc. represent rational or irrational number:

y2 = 9

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Solution

Given that y2 = 9

Now we have to find the value of y

y2 = 9

`rArry=sqrt9`

⇒ y = 3

So y is a rational number

Concept: Concept of Irrational Numbers
  Is there an error in this question or solution?
Chapter 1: Number Systems - Exercise 1.4 [Page 31]
Q 5.2
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RD Sharma Mathematics for Class 9
Chapter 1 Number Systems
Exercise 1.4 | Q 5.2 | Page 31
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