3 marks of your communication mark is based on your mathematical form, vector signs, units, and good communication on this test. Knowledge and Understanding ( 10 Marks) 1. Given the points A(1-1, 1), B(2, 3, 0) and C(4, 3, -4), find the vector, parametric and cartesian equations of the plane. ( 6 Marks) Habi Habil Habit 2. Find the angle between the pair of planes. (4 marks) n 1 : x + 2y+32+1=0, it 2:3x + 2y +z+2=0 INASH