Are the square roots of all positive integers irrational? If not, give an example of the square root of a number that is a rational number. - Mathematics

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Are the square roots of all positive integers irrational? If not, give an example of the square root of a number that is a rational number.

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Solution

No, For example `sqrt4 = 2`  is a rational number.

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Chapter 1: Number Systems - Exercise 1.2 [Page 8]

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NCERT Mathematics Class 9
Chapter 1 Number Systems
Exercise 1.2 | Q 2 | Page 8

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