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**[Dot Product] Vector Projection**

## Homework Statement

## Homework Equations

## The Attempt at a Solution

I am not sure what to do here -- I know that the projection of

**u**onto

**a**"dotted" with

**w**= 0 by definition, but I don't know how to show this.

added this second part after plugging in for the definition of the projection we derived in class, then simplified. . .

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