Find a Unit Vector U in the Direction Opposite Of \mathbf

question 43

Multiple Choice

Find a unit vector u in the direction opposite of $$\mathbf { v } = \langle 2,8 , - 3 \}$$

• A) \(\mathbf { u } = ( - 1 / \sqrt { 77 } ) ( 2,8 , - 3 )\)
• B) \(\mathbf { u } = ( 1 / \sqrt { 59 } ) ( 2,8 , - 3 )\)
• C) \(\mathbf { u } = ( - 1 / \sqrt { 59 } ) ( 2,8 , - 3 \}\)
• D) \(\mathbf { u } = ( 1 / \sqrt { 77 } ) \{ 2,8 , - 3 \}\)
• E) \(\mathbf { u } = ( - 1 / 6 \sqrt { 2 } ) \{ 2,8 , - 3 \}\)

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