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WZ

# If $u$ is a unit vector, find $u \cdot v$ and $u \cdot w$.

## $$\mathbf{u} \cdot \mathbf{v}=\frac{1}{2}, \mathbf{u} \cdot \mathbf{w}=-\frac{1}{2}$$

Vectors

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##### Lily A.

Johns Hopkins University

##### Catherine R.

Missouri State University

##### Kristen K.

University of Michigan - Ann Arbor

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### Video Transcript

The problem is, if you is a unit, Wachter find you that way. And you that I love you. Look at the graph here. This is on equal atrial tangos. So we have magnitude. If you is the coaches magnitude of we Yes, he could. You magnitude of view is he called. Who? What and angle between you and Reid is sixty degrees and Teo Tch and go between watchers. You and dump you. This angle is he caught you a handwritten on DH twenty degrees. So we have you not read. It's a country magnitude of you. Time's magnitude Have we ham's co sign sixty Vigorous. This's he could one that one. That one half of this is because you, my heart, you don't go for you It's a coach. You, Maren teach a few pounds magnitude of w times consign one hundred and twenty degrees. This is equal Chu one times one times negative or half. This is because connective half

WZ

#### Topics

Vectors

##### Lily A.

Johns Hopkins University

##### Catherine R.

Missouri State University

##### Kristen K.

University of Michigan - Ann Arbor

Lectures

Join Bootcamp