ComplexNumberApplication
GeometricInequality
Intermediate
Let positive real number $x$, $y$, and $z$ satisfy $x+y+z=1$. Find the minimal value of $u=\sqrt{x^2 + y^2 + xy} + \sqrt{y^2 +z^2 +yz} +\sqrt{z^2 +x^2 + xz}$
The solution for this problem is available for
$0.99.
You can also purchase a pass for all available solutions for
$99.