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Find a Unit Vector in the Direction of U (11,13,7)( 11 , - 13,7 )

Question 243

Multiple Choice

Find a unit vector in the direction of u. u = (11,13,7) ( 11 , - 13,7 )


A) 31339(11,13,7) \frac { \sqrt { 31 } } { \sqrt { 339 } } ( 11 , - 13,7 )
B) 1339(11,13,7) \frac { 1 } { \sqrt { 339 } } ( 11 , - 13,7 )
C) (11,13,7) ( 11 , - 13,7 )
D) 339(11,13,7) \sqrt { 339 } ( 11 , - 13,7 )
E) 31(11,13,7) \sqrt { 31 } ( 11 , - 13,7 )

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