Answer
$\sqrt{43}$
Work Step by Step
The distance $d$ from $P_1(x_1,y_1,z_1)$ to $P_2(x_2,y_2,z_2)$ is given by the formula
$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2+(z_2-z_1)^2}$
Use the formula above to obtain:
$d=\sqrt{(4-1))^2+(-2-3)^2+(1-(-2))^2}\\
d=\sqrt{9+25+9}\\
d=\sqrt{43}$
