Problem 3: Nonlinear ODE Consider the system x=xx3 Now the question a.) Modify the code to solve this ode. (expected submission: your MATL AB code as m files) b.) Plot the results with a few different initial conditions (expected submission: pdf file of the figures, figure caption or legends should specify the initial condition used) c.) Sketch out a plot of x VS x, and explain the results you see in (a) (expected submission: picture of handwritten sketch and explanation on a piece of paper Deliverables: 1). Code as m files: A pdf file or a seratch paper with your answers to 2a,3a Note: The grader should be able to save your code into one directory and click run to get the retuls. 2) paf files: with your figure for 1a,2b,3b 3) Picture of handwritten sketch and esplanation: 16,2c,3c