Question

If Vector a = (5, -5, 3), Vector b = (1, 2, 3), determin proj (Vector a onto Vector b).

Answer 1

that would be

<b>a</b>•<b>b</b>/|<b>b</b>| =

(5)(1)+(-5)(2)+(3)(3)
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√(1^2+2^2+3^2)