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OpenStudy (anonymous):
Evaluate the expression: v ⋅ w Given the vectors: r = <5, -5, -2>; v = <2, -8, -8>; w = <-2, 6, -5>
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OpenStudy (zepp):
Multiply the corresponding component and add them up, what's so hard?
OpenStudy (anonymous):
can you give me an equation? my book doesnt explain how to solve this problem
OpenStudy (zepp):
\[(x_1,y_1,z_1) ⋅ (x_2,y_2,z_2)=x_1x_2+y_1y_2+z_1z_2\]
OpenStudy (anonymous):
thanks
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