Question

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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Answer 1

Answer:

No. Square roots of all positive integers are not irrational. Example 4, 9, 16, etc. are positive integers and their square roots are 2, 9 and 4 which are rational numbers.

Answer 2

No, the square roots of all positive integers are not irrational.

For example,

√4 = 2 is rational

√9 = 3 is rational.

Hence, the square roots of positive integers 4 and 9 are not irrational. (2 and 3, respectively)