ihatebiologyIII3323 ihatebiologyIII3323 24-05-2023 Mathematics contestada please answer both questions 2. Find values for a and b that make ū = [a, 3,6] and Ở = [-8, –12, b] collinear. = 3. What is the angle, to the nearest degree, that the vector [3, 4, -2] makes with the positive y-axis?