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Find || a || ∥a∥=7\| a \| = \sqrt { 7 }

Question 21

Multiple Choice

Find || a ||. a = - < 2, - 5 >


A) ∥a∥=7\| a \| = \sqrt { 7 }
B) ∥a∥=29\| a \| = \sqrt { 29 }
C) ∥a∥=5\| a \| = \sqrt { 5 }
D) ∥a∥=28\| a \| = \sqrt { 28 }
E) ∥a∥=50\| a \| = \sqrt { 50 }

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