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DHAT
 one year ago
Section 12  Distance to Planes Problem 1  Why is vector PQ = <1,0,0>? Shouldn't it be <1,0,0> since we are subtracting P from Q?
DHAT
 one year ago
Section 12  Distance to Planes Problem 1  Why is vector PQ = <1,0,0>? Shouldn't it be <1,0,0> since we are subtracting P from Q?

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jxsoto
 one year ago
Best ResponseYou've already chosen the best response.0You are right. However, that doesn't make a difference in this case, since the other two coordinates are cero (the dot product gives you the same number with opposite sign), and then you take the absolute value at the end.
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