5. Plot y = x sin(x) - cos(x²), 0 ≤x≤ 10, using plot. Label the axes and include a title. Use a line style at your choice. 6. Plot f = x - sin x and g = 1 - x cos x for -2 ≤x≤2π on the same plot. Then use subplot to plot these graphs into two horizontally ordered subwindows. 7. Plot the curve w = xex cos x for 0 < x < 2 using fplot. Then, create a filled area plot for the same function. 8. Plot the level curves x² + sin(xy) + y² = 1,2,3 using contour. 9. Create a surface plot of the function f(x, y) = 0.5x² + (1 - cos y) for - <x<π, −2< y <2. Then plot 3D contour lines using contour3. 10. Plot z = √√√x² + y² cos x cosy, |x| ≤2π, |y| ≤2π, using both ezsurf and ezsurfc.