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30-08-2021
Mathematics

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Help pls will choose brainliest

Help pls will choose brainliest class=

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30-08-2021

Answer: B

Step-by-step explanation:

[tex]||\overrightarrow{u}||=\sqrt{5^2+(-12)^2} =13\\\\||c\overrightarrow{u}||=|c|*||\overrightarrow{u}||=3*13=39\\\\\\answer\ B[/tex]

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