Question: 7. Given a = [4, 7, 1] and b = [-3,1, 5]: a) Calculate the angle between a and b. [3] b) If c =
![7. Given a = [4, 7, 1] and b = [-3,1,](https://s3.amazonaws.com/si.experts.images/answers/2024/06/6668316a2bd25_4266668316a0d950.jpg)
![5]: a) Calculate the angle between a and b. [3] b) If](https://s3.amazonaws.com/si.experts.images/answers/2024/06/6668316a92d60_4266668316a6b933.jpg)
7. Given a = [4, 7, 1] and b = [-3,1, 5]: a) Calculate the angle between a and b. [3] b) If c = [3, -4, t], find t so that a and c are perpendicular. [3]
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