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7. Given a = [2, -10] and b = [-8, 23], find: a. 3a - 2b [2 marks] b. a . b [1 marks] C.

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7. Given a = [2, -10] and b = [-8, 23], find: a. 3a - 2b [2 marks] b. a . b [1 marks] C. a + b [2 marks] d. proj a [3 marks] e. The angle between a and 6 [2 marks] 8. Given p = -1, 4, -8] and 9 = [10, 10, -9], find: a. 2p + 5q [2 marks] b. p . q [2 marks] c. q x p [3 marks] d. p X q [1 marks] e. The angle between p and q [3 marks] f. proj-p [3 marks]

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