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OpenStudy (anonymous):
Are these vectors parallel or orthogonal or neither? U=(10,0) v=(0,-9)
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OpenStudy (ipwnbunnies):
If u.v = 0, then the vectors are orthogoanl. That's dot product.
OpenStudy (ipwnbunnies):
I may be wrong, but if you do cross product on the two vectors and it is 0, they are parallel.
OpenStudy (ipwnbunnies):
Yes, I just looked it up. uxv = 0, the vectors are parallel.
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