What is the unit vector in the direction of (-3,5,4)?

1 Answer
Douglas K.
Sep 25, 2016

Divide the given vector by the magnitude of the vector

Explanation:

Let the vector bar A = (-3,5,4)

The magnitude, |barA|, is:

|bar A| = sqrt(-3^2 + 5^2 + 4^2)

|bar A| = sqrt(50)

The unit vector, hat A, is:

hat A = {(-3,5,4)}/sqrt(50)

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