Perform Operations with Vectors in Terms of I and J $\mathbf { u } = - 8 \mathbf { i } + 1 \mathbf { j }$

question 123

Multiple Choice

Perform Operations with Vectors in Terms of i and j
- $\mathbf { u } = - 8 \mathbf { i } + 1 \mathbf { j }$ and $\mathbf { v } = 5 \mathbf { i } + 1 \mathbf { j }$ ; Find $\| \mathbf { u } + \mathbf { v } \|$

• A) \(\sqrt { 13 }\)
• B) 13
• C) \(\sqrt { 91 }\)
• D) \(3 \sqrt { 5 }\)

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