Question: 7. Given a = [4, 7, 1] and b = [-3,1, 5]: a) Calculate the angle between a and b. [3] b) Ifc = [3,
![7. Given a = [4, 7, 1] and b = [-3,1,](https://s3.amazonaws.com/si.experts.images/answers/2024/06/66683dd9ae721_60966683dd98bc1c.jpg)
![5]: a) Calculate the angle between a and b. [3] b) Ifc](https://s3.amazonaws.com/si.experts.images/answers/2024/06/66683dda337fc_60966683dd9f2c94.jpg)
7. Given a = [4, 7, 1] and b = [-3,1, 5]: a) Calculate the angle between a and b. [3] b) Ifc = [3, -4, t], find t so that a and c are perpendicular
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