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Find the Vector Projv U 19169i+19169j+19169k\frac { 19 } { 169 } \mathbf { i } + \frac { 19 } { 169 } \mathbf { j } + \frac { 19 } { 169 } \mathbf { k }

Question 161

Multiple Choice

Find the vector projv u.
-v = i + j + k, u = 3i + 4j + 12k


A) 19169i+19169j+19169k\frac { 19 } { 169 } \mathbf { i } + \frac { 19 } { 169 } \mathbf { j } + \frac { 19 } { 169 } \mathbf { k }
B) 1913i+1913j+1913k\frac { 19 } { 13 } \mathbf { i } + \frac { 19 } { 13 } \mathbf { j } + \frac { 19 } { 13 } \mathbf { k }
C) 203i+203j+203k\frac { 20 } { 3 } \mathbf { i } + \frac { 20 } { 3 } \mathbf { j } + \frac { 20 } { 3 } \mathbf { k }
D) 193i+193j+193k\frac { 19 } { 3 } \mathbf { i } + \frac { 19 } { 3 } \mathbf { j } + \frac { 19 } { 3 } \mathbf { k }

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