Can the square root of a real number be negative?
3955
Square roots -- positive and negative
71566
Positive and negative complex numbers?
6650
Why $\sqrt{-1 \times -1} \neq \sqrt{-1}^2$?
140969
Limit of square root problem
14633
What's the thing with $\sqrt{-1} = i$
22397
Is 0.9999... equal to -1?
44763
Modulo operator with negative values
650
Modulus operation with negatives values - weird thing?
39170
Existence of square root
60261
Is $\sqrt{x^2}=|x|$ or $=x$? Isn't $(x^2)^\frac12=x?$
28228
Is a prime factor of a number always less than its square root?
1190
Square Root of Rational Number $\frac{A}{B}$
56894
Is it a problem to get a negative adjusted r-squared?
101162
Square root of $2$ is irrational
106716
The sum of square roots of non-perfect squares is never integer
150624
Why does the square root of a square involve the plus-minus sign?
34024
Are +0 and -0 the same?