Gradebook EC] 20231 / Default Unit / Assignment 04 If u = (2, 2, -2), 3 = (4, -4, 2), and w = (-3, 2, 4), find the following: a) u . (4w) = Va a sin (a) ? b ) zx 3 + w = C) U . W X 2u) = Va a sin (a) ? Submit Assignment Quit MacBook Air