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31 votes
31 votes
Determine the magnitude and direction of vector a = (3,8) Round to the nearest tenths. |a| =theta =

User Ahmed Nasser
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3.2k points

1 Answer

20 votes
20 votes

Recall the definitions of the magnitude and direction of a vector:


\begin{gathered} \parallel a\parallel=\sqrt[]{3^2+8^2}=\sqrt[]{73}=8.5 \\ \theta=\tan ^(-1)((8)/(3))=69.4^(\circ) \end{gathered}

User Balkondemiri
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