Determine the Values Of $c$ Such That $\| c \mathbf { u } \| = 6$

question 81

Multiple Choice

Determine the values of $c$ such that $\| c \mathbf { u } \| = 6$ , where $\mathbf { u } = - 3 \mathbf { i } + 2 \mathbf { j } - 5 \mathbf { k }$ .

• A) \(c = \pm 6\)
• B) \(c = \pm \frac { 3 \sqrt { 38 } } { 19 }\)
• C) \(c = \pm \frac { \sqrt { 38 } } { 6 }\)
• D) \(c = \pm \frac { 1 } { 6 }\)
• E) \(c = \pm \frac { \sqrt { 38 } } { 38 }\)

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