Use the Dot Product to Find the Magnitude of U $\mathbf { u } = 4 \mathbf { j }$

question 31

Multiple Choice

Use the dot product to find the magnitude of u.​ $\mathbf { u } = 4 \mathbf { j }$ ​

• A)5
• B)6
• C)4
• D)7
• E)8

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