a) Given the two vectors A = 3ax – 2ay – 4az and B = 4ax + 2ay – az :-- a. Calculate the dot product A · B. c. Calculate the angle between the two vectors A and B. b) Find the spherical coordinates of point C(-4, 3, -2) given in rectangular coordinates. c) Find the rectangular coordinates of point D (2, 75°, -3) given in cylindrical coordinates.

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