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Orth of b onto a

by darthxepher
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darthxepher
#1
Jan27-09, 11:22 PM
P: 58
1. The problem statement, all variables and given/known data

Show that vector orth of b onto a=b-proj of b onto a is orthogonal to a.


I totally don't know where to start :(

and I don't know hat orth of b onto a means...
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CompuChip
#2
Jan28-09, 03:12 AM
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Quote Quote by darthxepher View Post
and I don't know hat orth of b onto a means...
Well, that's kind of crucial for answering this question, isn't it. Do you have any lecture notes or textbook in which you can look this up?
Do you remember what the dot product ([itex]\vec a \cdot \vec b[/itex]) meant geometrically?


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