The preference is that ✓5 should be left in radical form as an irrational number.
It should be noted that a radical form is illustrated when n is a positive integer that is greater than 1.
Here, a rational number is a number that can be represented in the form of p/q where p and q are integers. In this case, ✓5 will nvwe give a perfect number in decimal form. Hence, it's better to leave it radical form.
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