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The Vector Projection Of v=i3j+k\mathbf { v } = \mathbf { i } - 3 \mathbf { j } + \mathbf { k }

Question 28

Multiple Choice

The vector projection of v=i3j+k\mathbf { v } = \mathbf { i } - 3 \mathbf { j } + \mathbf { k } onto w=ij+k\mathbf { w } = \mathbf { i } - \mathbf { j } + \mathbf { k } is


A) 53i53j+53k\frac { 5 } { 3 } i - \frac { 5 } { 3 } j + \frac { 5 } { 3 } \mathbf { k }
B) 53i53j53k\frac { 5 } { 3 } i - \frac { 5 } { 3 } j - \frac { 5 } { 3 } k
C) 53i+53j+53k- \frac { 5 } { 3 } i + \frac { 5 } { 3 } j + \frac { 5 } { 3 } k
D) 53i53j+53k- \frac { 5 } { 3 } i - \frac { 5 } { 3 } j + \frac { 5 } { 3 } k
E) 53i+53j53k\frac { 5 } { 3 } i + \frac { 5 } { 3 } j - \frac { 5 } { 3 } \mathbf { k }

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