E
Editor
Sep 18, 2022
The angle between the vectors u=2i-j+k and v=-i+j is:
Difficulty: Easy
A:
$\frac{3\pi}{2}$
B:
$\frac{2\pi}{3}$
C:
$\frac{5\pi}{6}$
D:
$\frac{\pi}{3}$
ID: 63273dbaca83163ac3a133af