V=5i-4j What is the angle of the vector?

1 Answer
Antonios T. · F. Javier B.
Apr 14, 2018

think of it as a triangle and just use trigonometry

Explanation:

tantheta=-4/5tanθ=−45

theta=tan^-1 (-4/5)θ=tan−1(−45)

=-38.6^o=−38.6o

The vector is in 4th quadrant, so 360-38.6=321º 24´

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