integration problem

I need to integrate f(x)*cos(x)dx for x from 0 to 2*pi.

For f(x), I have a list of 33 y-values with corresponding x=[0:2*pi/32:2*pi].

How do I integrate this in MATLAB?

Answer 1

[Walter Roberson]

   trapz(x,y .* cos(x))

Answer 2

[mohan krishna]

integral phi/2 0 cosxdx