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goldr4k3 08-10-2012
goldr4k3 - Yale University (CT)
If the direction-angle of A is between 180 degrees and 270 degrees, its components are both negative. If a vector is in the second quadrant or the fourth quadrant, its components have opposite signs.
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burhn 27-01-2013
burhn - Alagappa University
The vector will have both negative components in the third quadrant. The components will have opposite signs in quadrants 2 and 4
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