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

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Yes

May be

None

answer is A.

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Detailed Solution

The square roots of all positive integers are not irrational.
For example

\Rightarrow \sqrt{9} = 3

\Rightarrow \sqrt{25} = 5

,
Therefore, none of the positive integers' square roots are irrational.
Now,

\sqrt{25} = 5

And

\sqrt{36} = 6

are rational.
So, the square root of positive integer are not irrational.
Option 1 is correct.

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