Question

Find the Direction Angle:

u=-4i-7j

Answer 1

To find the Direction Angle, we only have to do:

\[\theta=arctan\left(\frac{y}{x}\right)\]

\[\theta=arctan\left(\frac{-7}{-4}\right)\]

\[\theta\approx60.25^o\approx1.05~rad\]

Answer 2

You back at it again DEX! lol