Answer to Question #96505 in Analytic Geometry for Olajide Olaitan

Analytic Geometry

Question #96505

Find the projection of the vector A=i-2j+k on the vector B=4i-4j+7k

Expert's answer

The scalar projection is "proj_BA=\\frac{A*B}{|B|}=\\frac{1*4+(-2)*(-4)+1*7}{\\sqrt{4^2+(-4)^2+7^2}}=\\frac{19}{9}."

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