Question

Please find the answer... also the answer could be “not a real number”

Answer 1

-1

not a real number

Explanation:

`-√(1) = -1`

Above, take the square root of 1. What number multiplied by itself equals 1? Answer is 1. Square root of 1 is 1. Then you take its negative, so answer is -1.

`√(-100)` not a real number

Problem above is what number multiplied by itself equals -100?

There is no such real number.

10 * 10 = 100

(-10) * (-10) = 100

If you multiply 10 by itself, you get 100.

If you multiply -10 by itself, it is also 100.

There is no real number that you can multi;ly by itself and get -100.