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Assume That the Vectors a\mathbf { a } b\mathbf { b }

Question 2

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Assume that the vectors a\mathbf { a } , b\mathbf { b } ,  C \text { C } and  d \text { d } are defined as follows: a=1,2\mathbf { a } = \langle 1,2 \rangle b=5,4\mathbf { b } = \langle 5,4 \rangle c=5,2\mathbf { c } = \langle 5 , - 2 \rangle
d=2,0\mathbf { d } = \langle - 2,0 \rangle Compute 13b4d(3b4c) \frac { 1 } { | 3 b - 4 d | } ( 3 b - 4 c )


A) 5673673,20673673\left\langle - \frac { 5 \sqrt { 673 } } { 673 } , \frac { 20 \sqrt { 673 } } { 673 } \right\rangle
B) 20673673,5673673\left\langle \frac { 20 \sqrt { 673 } } { 673 } , \frac { 5 \sqrt { 673 } } { 673 } \right\rangle
C) 20673673,5673673\left\langle - \frac { 20 \sqrt { 673 } } { 673 } , - \frac { 5 \sqrt { 673 } } { 673 } \right\rangle
D) 5673673,20673673\left\langle - \frac { 5 \sqrt { 673 } } { 673 } , - \frac { 20 \sqrt { 673 } } { 673 } \right\rangle
E) 5673673,20673673\left\langle \frac { 5 \sqrt { 673 } } { 673 } , \frac { 20 \sqrt { 673 } } { 673 } \right\rangle

Correct Answer:

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