Exercise 4::

This is on mathlab:find the minimum value (y value) of the function on this interval.

**From its graph, estimate the minimum value of the function**

f(x) =

5cos(x)

+

8sin(x)

over the interval (0,p/2). Just plotting with x values given by

>> x = linspace(0,pi/2) 

will cause the same problems as above. Make a plot, judiciously avoiding the vertical asymptotes, and then find the minimum value (y value) of the function on this interval.