Knowledge and Understanding (15 Marks) 1. Let a = (2, -2, 3), b = (1, 3, 4), and c = (3, 6, 4). Find: a) a + 2b + 3c (2) b) a . b (2) c ) b x c (2) d)1 - 3a + 46 1 (3) 2. Determine the magnitude of the vector components (|Fr | and [Fy|) of each of the following resultant vectors. a) 30 N at an inclination of 40 counterclockwise from the horizontal. (2)