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January 25, 2015

January 25, 2015

Posted by **Sam** on Monday, April 30, 2012 at 9:15pm.

1) v = (4,1), w = (1,-4)

2) v = (2,3), w = (4,6)

3) v = (2,3), w = (3,-3)

Please and thanks!

- trig -
**Reiny**, Monday, April 30, 2012 at 9:30pmto be perpendicular, the dot product must be zero

to be parallel, one must a scalar multiple of the other.

The question is very easy.

- trig -
**Sam**, Monday, April 30, 2012 at 10:12pmI don't understand how to fnd it though Reiny :( perhaps you could help?

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