QUESTION 6 [17 MARKS] Consider the following boundary value problem y"-2y = 2xe* +In(x+2) where y(0)=0.5 and y(i)=-1.5. i) Find its finite difference formula by using a step size of h [4 Marks] ii) Write y, at each interior nodes x; for i=1,2,3,4. [6 Marks) iii) Transform the system of linear equations into tridiagonal matrix. [2 marks] iv) Solve the tridiagonal matrix in iil) by using any appropriate method. (5 Marks