Find a Unit Vector in the Direction of U $( 5,2,10 )$

question 155

Multiple Choice

Find a unit vector in the direction of u. u = $( 5,2,10 )$

• A) \(\frac { 1 } { \sqrt { 17 } } ( 5,10,2 )\)
• B) \(\frac { 1 } { \sqrt { 17 } } ( 5,2,10 )\)
• C) \(\frac { 1 } { \sqrt { 129 } } ( 2,5,10 )\)
• D) \(( 5,2,10 )\)
• E) \(\frac { 1 } { \sqrt { 129 } } ( 5,2,10 )\)

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