SOLUTION: u: <3, -1> v: <4, 3> w: <&#8532; , -8/9 > What's the angle between u and v ? A.) 48.2 B.) 55.3 C.) 58.6 D.) 61.1

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Question 1070967: u: <3, -1>
v: <4, 3>
w: <⅔ , -8/9 >
What's the angle between u and v ?
A.) 48.2
B.) 55.3
C.) 58.6
D.) 61.1

Answer by KMST(5328)   (Show Source): You can put this solution on YOUR website!


If the angle between and is ,

Substituting,



When I calculate that and then apply the inverse cosine function,
I get .

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