Evaluate the scalar products u.v and v.w. Evaluate u.w and interpret the result. If u and v are both perpendicular to r, find a unit vector in the direction of r (without using the vector product). Find the angle between u and v. = 4 - j +3k u= v=2+j+k w = -+5j+3k r = ai+Bj+yk Evaluate the scalar products u.v and v.w. Evaluate u.w and interpret the result. If u and v are both perpendicular to r, find a unit vector in the direction of r (without using the vector product). Find the angle between u and v. = 4 - j +3k u= v=2+j+k w = -+5j+3k r = ai+Bj+yk