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Express the Vector as a Product of Its Length and Direction

Question 169

Multiple Choice

Express the vector as a product of its length and direction.
- 16i+13j12k\frac { 1 } { \sqrt { 6 } } \mathbf { i } + \frac { 1 } { \sqrt { 3 } } \mathbf { j } - \frac { 1 } { \sqrt { 2 } } \mathbf { k }


A) 16(66i+63j62k) \frac { 1 } { 6 } \left( \frac { 6 } { \sqrt { 6 } } \mathbf { i } + \frac { 6 } { \sqrt { 3 } } \mathbf { j } - \frac { 6 } { \sqrt { 2 } } \mathbf { k } \right)
B) 1(16i+13j12k) 1 \left( \frac { 1 } { \sqrt { 6 } } \mathbf { i } + \frac { 1 } { \sqrt { 3 } } \mathbf { j } - \frac { 1 } { \sqrt { 2 } } \mathbf { k } \right)
C) 12(13i+23j22k) \frac { 1 } { 2 } \left( \frac { 1 } { 3 } \mathbf { i } + \frac { 2 } { \sqrt { 3 } } \mathbf { j } - \frac { 2 } { \sqrt { 2 } } \mathbf { k } \right)
D) 23(326i+323j322k) \frac { 2 } { 3 } \left( \frac { 3 } { 2 \sqrt { 6 } } \mathrm { i } + \frac { 3 } { 2 \sqrt { 3 } } \mathrm { j } - \frac { 3 } { 2 \sqrt { 2 } } \mathbf { k } \right)

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