Answer
$3$
Work Step by Step
The distance between two points can be calculated as:
$d(P,Q)=\sqrt {(y_1-x_1)^2+(y_2-x_2)^2+(y_3-x_3)^2}$
Here, we have
$d(P,Q)=\sqrt {(3-1)^2+(-2-0)^2+(3-2)^2}=\sqrt 9$
or, $d(P,Q)=3$
Thus, the distance between two points is: $3$
