Q#3: Using Euler's Method, Solve dx = x² - y, y(0) = 1, h = 0.1 at x = 0.1, 0.2, 0.3, 0.4. Compare the results with exact solution. #4: Using Heun's Method, Solve dy = dx , y(0) 1, h = 0.2 at x = 1. y+x Q#5: Solve ý x+y+xy, y(0) = 1, h=0.025. Find y(0.1) using Improved Euler's Method.