NCERT Solution Class IX Mathematics Number System Question 2 (Ex 1.2)

Question 2:

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.

Answer:

If numbers such as √4 = 2, √9 = 3 are considered,

Then here, 2 and 3 are rational numbers. Thus, the square roots of all positive
integers are not irrational.

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