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If A=12i^16j^\overrightarrow { \mathbf { A } } = 12 \hat { \mathbf { i } } - 16 \hat { \mathbf { j } }

Question 31

Multiple Choice

If A=12i^16j^\overrightarrow { \mathbf { A } } = 12 \hat { \mathbf { i } } - 16 \hat { \mathbf { j } } and B=24i^+10j^\overrightarrow { \mathbf { B } } = - 24 \hat { \mathbf { i } } + 10 \hat { \mathbf { j } } ,what is the magnitude of the vector C=2AB\overrightarrow { \mathrm { C } } = 2 \overrightarrow { \mathrm { A } } - \overrightarrow { \mathrm { B } } ?


A) 42
B) 22
C) 64
D) 90
E) 13

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