Question

If s is greater than or equal to 0, then the square root of s^2 is equal to?

Answer 1

Explanation:

Square root and square (raising to 2nd power) are two operations that just undo each other (like adding and subtracting or multiplying and dividing undo each other) if you square something and the square root it, you get back what you started with. Example: 5^2 is 25 and the Sqrt25 is the 5 back again.

So s^2 is a perfect square and if you square root it you get the s back again. Technically you could argue that you'd get +or- s. But the principle root is positive, which is the statement the question started with s>=0