Every positive number has two square roots. Their absolute values
are the same. One is positive and the other is negative.
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Yes. They have two square roots. Both have the same absolute value but one is positive while the other is negative.
For example, sqrt(16) = -4 and +4
The numbers 1 and negative 1 (-1) are both square roots of positive 1.The square root of negative 1 is the "imaginary" number i.
False
Negative numbers do not have "real number" square roots.However, they will have two roots (when using imaginary numbers) as do other numbers, where a root including i(square root of -1) is positive or negative.
-199
Because multiplying negative numbers together gives a positive answer. So the square root of nine is both three and minus three.