False
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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.
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.
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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Because multiplying negative numbers together gives a positive answer. So the square root of nine is both three and minus three.