Question: 3. (2 marks each) Given that Ja = 6, b = 4, and the angle between a and b is 60, calculate the following: a.

3. (2 marks each) Given that Ja = 6, b =

3. (2 marks each) Given that Ja = 6, b = 4, and the angle between a and b is 60, calculate the following: a. a + b b. a - b

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