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 2 years ago
Two vectors A and B have magnitudes of 6m and make an angle of 60 degrees with each other. Find A DOT B.
 2 years ago
Two vectors A and B have magnitudes of 6m and make an angle of 60 degrees with each other. Find A DOT B.

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zonazoo
 2 years ago
Best ResponseYou've already chosen the best response.0\[\cos \theta=\frac{ x \dot y }{ \left x \right\left y \right}\]

zonazoo
 2 years ago
Best ResponseYou've already chosen the best response.0so then just plug in your info, and solve for x dot y, or a dot b in this case.

3psilon
 2 years ago
Best ResponseYou've already chosen the best response.0How did you get the Cos theta = that stuff?

zonazoo
 2 years ago
Best ResponseYou've already chosen the best response.0its just a theorem or an equation which comes from the law of cosines

zonazoo
 2 years ago
Best ResponseYou've already chosen the best response.0well i took it when i first read it that A and B each had a magnitude of 6, but if they are 6 together, then yes it would be 3.

3psilon
 2 years ago
Best ResponseYou've already chosen the best response.0Oh they each have 6 So it would be 18>?
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