Determine the Values Of $c$ Such That $\| c \mathbf { u } \| = 2$

question 27

Multiple Choice

Determine the values of $c$ such that $\| c \mathbf { u } \| = 2$ , where $\mathbf { u } = 3 \mathbf { i } - 4 \mathbf { j } + 2 \mathbf { k }$ .

• A) \(c = \pm 2\)
• B) \(\quad c = \pm \frac { 2 \sqrt { 29 } } { 29 }\)
• C) \(c = \pm \frac { \sqrt { 29 } } { 2 }\)
• D) \(c = \pm \frac { 1 } { 2 }\)
• E) \(c = \pm \frac { \sqrt { 29 } } { 29 }\)

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