1. The following questions consider the following vector v := (2,1,-2) as well as a vector...

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1. The following questions consider the following vector v := (2,1,-2) as well as a vector w which you do not know. (a) (2 points) Compute the length of v. (b) (2 points) What is the unit vector in the direction of v? (c) (2 points) Which of the following three vectors could be the cross product v x w? CIRCLE ALL THAT ARE POSSIBLE, AND JUSTIFY YOUR ANSWER. (2,-2,1) (-1,2,2) (1,2,-1) 1. The following questions consider the following vector v := (2,1,-2) as well as a vector w which you do not know. (a) (2 points) Compute the length of v. (b) (2 points) What is the unit vector in the direction of v? (c) (2 points) Which of the following three vectors could be the cross product v x w? CIRCLE ALL THAT ARE POSSIBLE, AND JUSTIFY YOUR ANSWER. (2,-2,1) (-1,2,2) (1,2,-1)