Answer
$\lt 5,-7\gt$ and $\sqrt {74}$
Work Step by Step
The formula to find the magnitude of a vector is:
$|n|=\sqrt{n_1^2+n_2^2}$
Here, $u -v=\lt 3,-2 \gt -\lt -2,5 \gt =\lt 5,-7\gt$
and $|\lt 5,-7\gt|=\sqrt{5^2+(-73)^2}=\sqrt {74}$
Hence, our final answers are: $\lt 5,-7\gt$ and $\sqrt {74}$
