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Decompose V into Two Vectors V1 and V2, Where V1 v=2i+5j,w=2i+j\mathbf { v } = - 2 \mathbf { i } + 5 \mathbf { j } , \mathbf { w } = - 2 \mathbf { i } + \mathbf { j }

Question 141

Multiple Choice

Decompose v into two vectors v1 and v2, where v1 is parallel to w and v2 is orthogonal to w.
- v=2i+5j,w=2i+j\mathbf { v } = - 2 \mathbf { i } + 5 \mathbf { j } , \mathbf { w } = - 2 \mathbf { i } + \mathbf { j }


A) v1=95(2i+j) ,v2=85i+165j\mathbf { v } _ { 1 } = \frac { 9 } { 5 } ( - 2 \mathbf { i } + \mathbf { j } ) , \mathbf { v } _ { 2 } = \frac { 8 } { 5 } \mathbf { i } + \frac { 16 } { 5 } \mathbf { j }
B) v1=95(2i+j) ,v2=95i+265j\mathbf { v } _ { 1 } = \frac { 9 } { 5 } ( - 2 \mathbf { i } + \mathbf { j } ) , \mathbf { v } _ { 2 } = - \frac { 9 } { 5 } \mathbf { i } + \frac { 26 } { 5 } \mathbf { j }
C) v1=94(2i+j) ,v2=52i+214j\mathbf { v } _ { 1 } = \frac { 9 } { 4 } ( - 2 \mathbf { i } + \mathbf { j } ) , \mathbf { v } _ { 2 } = - \frac { 5 } { 2 } \mathbf { i } + \frac { 21 } { 4 } \mathbf { j }
D) v1=95(2i+j) ,v2=125i+265j\mathbf { v } _ { 1 } = \frac { 9 } { 5 } ( - 2 \mathbf { i } + \mathbf { j } ) , \mathbf { v } _ { 2 } = - \frac { 12 } { 5 } \mathbf { i } + \frac { 26 } { 5 } \mathbf { j }

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