I tried and got zero for $a_0, a_n$ and $ b_n$. I do not know if that is correct, but that just looks weird. However, the function looks weird too. Help?
2026-04-07 07:35:12.1775547312
Fourier coefficients for $f(x)=\sin(14x)+30\cos(25x)$?
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All coefficients are zero except $a_{25}$ and $b_{14}$.