Answer
$\sqrt{38}$
Work Step by Step
Formula to find the distance between two points is
$|PQ|=\sqrt{(x-x_0)^2+(y-y_0)^2+(z-z_0)^2}$
Let us consider $P=(5,3,-2)$ and $Q=(0,0,0)$
Now,
$|PQ|=\sqrt{(0-5)^2+(0-3)^2+(0-(-2))^2}=\sqrt{(-5)^2+(-3)^2+(2))^2}$
or, $|PQ|=\sqrt {25+9+4}=\sqrt{38}$
