Exercise 6.2 Write an M-file in which you define the function f (x) sin(x2 )cos x and

have Matlab compute the first two derivatives as functions df and df2. Using plot, create a graph of the function f and the first two derivatives over the interval [,]. Use different line styles for each plot and a label to distinguish which is which. You may want to truncate the y-axis display to the interval [10,10]. This can be done using the command ylim. Publish your result, after dividing the M-file into appropriate cells so that the output is closely related to the input statements.