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7. Given a = [2, -10] and b = [-8, 23] , find: a. 3a - 26 [2 marks] b. a . b [1 marks]

7. Given a = [2, -10] and b = [-8, 23] , find: a. 3a - 26 [2 marks] b. a . b [1 marks] c. a + b [2 marks] d. proj a [3 marks] b e. The angle between a and b [2 marks]

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