Question

Dado los vectores u=(2,-1) y v=(0,3) determine el modulo de los vectores .

Answer 1

$|u| = \sqrt{2 {}^{2} + ( - 1) {}^{2} } = \sqrt{5}$
$|v| = \sqrt{0 {}^{2} + 3 {}^{2} } = \sqrt{9} = 3$