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Find the Unit Vector in the Direction of V
- v=3i+jv = 3 \mathbf { i } + \mathbf { j }

Question 78

Multiple Choice

Find the Unit Vector in the Direction of v
- v=3i+jv = 3 \mathbf { i } + \mathbf { j }


A) u=310i+110j\mathbf { u } = \frac { 3 } { \sqrt { 10 } } \mathbf { i } + \frac { 1 } { \sqrt { 10 } } \mathbf { j }
B) u=310i+10j\mathbf { u } = 3 \sqrt { 10 } \mathrm { i } + \sqrt { 10 } \mathrm { j }
C) u=311i+111j\mathbf { u } = \frac { 3 } { \sqrt { 11 } } \mathbf { i } + \frac { 1 } { \sqrt { 11 } } \mathbf { j }
D) u=103i+10j\mathbf { u } = \frac { \sqrt { 10 } } { 3 } \mathbf { i } + \sqrt { 10 } \mathbf { j }

Correct Answer:

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