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anonymous
 5 years ago
Use the dot product to find the magnitude of u if u =  3i  6j.
anonymous
 5 years ago
Use the dot product to find the magnitude of u if u =  3i  6j.

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0magnitude is just Sqrt[(3)^2+(6)^2]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Oh ok I was using the wrong equation then that would def. explain it How do you do a sqrt with negatives?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0there wouldn't be negative since you are squaring them first

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0uh... ok I'm confused sorry

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0are you trying to find the sqrt of (3^2+6^2) cause you can't find a sqrt with negative numbers....?
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