SOLUTION: Find the magnitude and direction of the vector U = <-5i, -6j)

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Question 857615: Find the magnitude and direction of the vector U = <-5i, -6j)
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
abs%28U%29=sqrt%28%28-5%29%5E2%2B%286%29%5E2%29
abs%28U%29=sqrt%2825%2B36%29
abs%28U%29=sqrt%2861%29
tan%28theta%29=6%2F%28-5%29
theta=129.8 measured CCW with positive x axis being theta=0