Question: Let a = (4, 5, - 5) and b = (1, - 5, 2). Find the angle between the vector 1) The exact angle is

Let a = (4, 5, - 5) and b = (1,

- 5, 2). Find the angle between the vector 1) The exact

Let a = (4, 5, - 5) and b = (1, - 5, 2). Find the angle between the vector 1) The exact angle is cos 2) The approximation in degree is

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