you will get rero marks for this part of the ered Question 9(c) (4 marks) Find the eigenvalues of the matrix 1 - red - (3) and find an eigenvector corresponding to the larger eigenvalue. ed ed Question 9(d) (4 marks) A construction site is on a plot of land which is in the shape of a triangle whose sides are measured in metres. Its vertices are P(7.7.5), 0(-2, 1, 3) and R(3.-4, -1). Use vectors to find (correct to two decimal places) the area of this triangular plot of land. Question 9(e) (4 marks) The velocity and acceleration of a particle are given by i = 18(21 - / +2k) and a = 2(87+ 4) - k) respectively. Determine the cosine of the angle between the velocity and acceleration a. Answer as a fraction in simplest form. Submit all parte