Using Matlab do the following:

1. Graph the function f(x) = sin((/2)x) + sin( (2/5)Tx) over the interval [0, 401. a. How many peaks (relative maxima) does the graph have? b. This function is periodic. How many periods are graphed in [0, 40]? c. Estimate from your graph the value of f(10) to at least 1 decimal point