If a = ( - 5, - 4, - 2) and b = (- 3, 4, 5) then: proj, b = 11 44 22 3 ' 15 ' 45 XThe angle between the vectors a = ( - 4, 3, - 2) and b = (4, - 5, 4) (measured in radians) is: A =Given the vector a = 82 + 97 + 72k Find the unit vector in the same direction in ijk formA lamina with inner radius 3 and outer radius 4, shown here (not to scale): has density function: o(x, y) = x2 + y2 The coordinates of the center of mass for the lamina are: = y =Find Mass, Mx, My and a and y of the Lamina bounded by R = {(x, y) | 0