When use matlab or mathematica integrate this y = int(cos(m*pi*x/a)*cos(n*pi*x/a)/(x+a0)^2,x,0,a); (m,n=0,1,2,3,4,5...)
There is some explicit integral. I try to solve this problem. But the result is complex.
Is there some effective way to solve this problem.
Thanks!
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