Asked by Math

Let a=(5,2) and b=(-3,1), find a (dot) b
Answered by oobleck
what are your thoughts on this one? Have you not done any dot products yet?
Answered by Math
Nope, our teacher probably gave this to us to see if we can figure it out. But I haven't been able to.
Answered by oobleck
Surely your text explains how to do them.
(a,b) dot (c,d) = (ac,bd)
That is, just multiply the respective components of the two vectors. The result is just a scalar number.

google can provide you with many explanations and examples.
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