12. 4. B=9, and the angle between A and B is 60. For the following questions,...

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12. 4. B=9, and the angle between A and B is 60. For the following questions, state your reasoning. A-48-9 a. Determine 4A-2B b. Determine 4A 4A+20 11. Vector AB goes from (1, 0) to (2, 1). Vector CD starts at (4, 2). a. Calculate the magnitude of AB. b. If AB CD, determine the endpoint of CD. = 12. 4. B=9, and the angle between A and B is 60. For the following questions, state your reasoning. A-48-9 a. Determine 4A-2B b. Determine 4A 4A+20 11. Vector AB goes from (1, 0) to (2, 1). Vector CD starts at (4, 2). a. Calculate the magnitude of AB. b. If AB CD, determine the endpoint of CD. =