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The Unit Vector Resulted from Normalizing the Vector w=1,3,1\mathbf { w } = \langle 1,3 , - 1 \rangle

Question 87

Multiple Choice

The unit vector resulted from normalizing the vector w=1,3,1\mathbf { w } = \langle 1,3 , - 1 \rangle is


A) (113,313,113) \left( \frac { 1 } { \sqrt { 13 } } , \frac { 3 } { \sqrt { 13 } } , \frac { - 1 } { \sqrt { 13 } } \right)
B) (111,311,111) \left( \frac { 1 } { \sqrt { 11 } } , \frac { 3 } { \sqrt { 11 } } , \frac { - 1 } { \sqrt { 11 } } \right)
C) (117,317,117) \left( \frac { 1 } { \sqrt { 17 } } , \frac { 3 } { \sqrt { 17 } } , \frac { - 1 } { \sqrt { 17 } } \right)
D) (123,323,123) \left( \frac { 1 } { \sqrt { 23 } } , \frac { 3 } { \sqrt { 23 } } , \frac { - 1 } { \sqrt { 23 } } \right)
E) (121,321,121) \left( \frac { 1 } { \sqrt { 21 } } , \frac { 3 } { \sqrt { 21 } } , \frac { - 1 } { \sqrt { 21 } } \right)

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