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OpenStudy (anonymous):
Find a b. (5 points) a = 5i + 7j, b = -4i + 3j <1, 10> <-20, 21> 1 41
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OpenStudy (freckles):
a dot b?
OpenStudy (freckles):
\[<u,v> \cdot <x,y>=ux+vy\]
OpenStudy (anonymous):
so is si -20,21?
OpenStudy (anonymous):
@freckles
ganeshie8 (ganeshie8):
-20 + 21
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ganeshie8 (ganeshie8):
simplify
OpenStudy (anonymous):
? so thats the answer right? @ganeshie8
ganeshie8 (ganeshie8):
Yes -20+21 = ?
OpenStudy (anonymous):
1
OpenStudy (anonymous):
@ganeshie8
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