What is $\sqrt{(-1)^2}$
3712
Why $\sqrt{-1 \cdot {-1}} \neq \sqrt{-1}^2$?
82097
If $A \succeq B$, is it true that $B^{-1} \succeq A^{-1}$?
125069
Help with $\int \frac 1{\sqrt{a^2 - x^2}} \mathrm dx$
81875
why is $\sqrt{-1} = i$ and not $\pm i$?
31269
How to visualize $f(x) = (-2)^x$
142768
Approximation of $\sqrt{2}$
34742
In my calculator why does $\sqrt4 -2=-8.1648465955514287168521180122928e-39?$
152326
What is the inverse of the function $x \mapsto \frac{ax}{\sqrt{a^2 - |x|^2}}$?
111432
Square root of a number squared is equal to the absolute value of that number
80648
What's $(-1)^{2/3}\; $?
154845
Irreducible elements in  $\mathbb{Z}[\sqrt{-2}]$ and is it a Euclidean domain?
50041
Significance of $\sqrt[n]{a^n} $?!
40534
What is $(-1)^{\frac{2}{3}}$?
33184
Something strange about $\sqrt{ 4+ \sqrt{ 4 + \sqrt{ 4-x}}}=x$ and its friends
8589
$\sqrt[b_1]{a_1}+\sqrt[b_2]{a_2}+\cdots+\sqrt[b_k]{a_k}$ not an integer
108923
What is wrong with this false proof? $-1=(-1)^1=(-1)^\frac{2}{2}=((-1)^2)^\frac{1}{2}=\sqrt{(-1)^2}=\sqrt{1}=1$
16931
Can one do the maths of physics without using $\sqrt{-1}$?