SOLUTION: Find the dot product v dot w if v = i + j and w = -i + j.

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Question 160618: Find the dot product v dot w if v = i + j and w = -i + j.
Answer by nabla(475) About Me  (Show Source):
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dot product means multiply each component of one vector with another vector, and add them.
For instance, <1,1,1>*<0,2,3>=2+3=5
So for <1,1>*<-1,1>=0