Hi,
Im doing Fourier Series atm for an exam on monday!
And im stuck on intergration by parts.
X cos n (pi) = ?
...........2
Im prity sure it its get broken apart into X and cos n (pi)
.................................................. ....................2
so basically what im asking is what is the integral of Cos n (pi) is it 2 Sin n (pi)
.................................................. ............................2 .................n
Sorry for the .... its the only way i could get it to line up correctly!!
thanks for your time and help