why square root of a positive number is positive?
44799
Why is the even root of a number always positive?
34024
Are +0 and -0 the same?
75690
Does the given matrix have a square root?
7463
Square root of a square
110661
When does $\sqrt{a b} = \sqrt{a} \sqrt{b}$?
56954
Equality holds in triangle inequality iff both numbers are positive, both are negative or one is zero
82462
Square Root Algorithm
85351
Standard Deviation. Why do we take the square root of the entire equation?
134927
How can a square root be defined since it has two answers?
16660
Prove that any positive number has an $n$th root
28228
Is a prime factor of a number always less than its square root?
106030
Find all the positive integer
117320
Why is this true: $\|x\|_1 \le \sqrt n \cdot \|x\|_2$?
17930
Please explain this step in proving the square root of 3 is irrational
120461
Polar Plots and square roots
115296
Under what conditions does a matrix $A$ have a square root?
112319
Sieve of Eratosthenes : why $\sqrt n$ work?