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Mathematics 22 Online
OpenStudy (anonymous):

Find the magnitude and the positive direction angle for U u= theta= HELP please...

OpenStudy (anonymous):

Oops...this might help <-4,3>

OpenStudy (amistre64):

do you know how to find the length of a vector?

OpenStudy (anonymous):

I forget where to start :S

OpenStudy (amistre64):

... square, add, sqrt

OpenStudy (amistre64):

youll want to draw it out and take a tangent to pinpoint the angle

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