Answer
$\lt 12,-19\gt$ and $\sqrt {505}$
Work Step by Step
The formula to find the magnitude of a vector is:
$|n|=\sqrt{n_1^2+n_2^2}$
Here, $2u -2v=2\lt 3,-2 \gt -2\lt -2,5 \gt =\lt 12,-19\gt$
and $|\lt 12,-19\gt|=\sqrt{12^2+(-19)^2}=\sqrt {505}$
Hence, our final answers are: $\lt 12,-19\gt$ and $\sqrt {505}$
