Math formulas and cheat sheets for Definite integrals of rational functions

Definite integrals of rational functions

∫∞0dxx2+a2=π2a
∫∞0xp−1dx1+x=πsin(pπ), 0<p<1
∫∞0xmxn+an=πam+1−nnsin[(m+1)π/n], 0<m+1<n
∫a0dxa2−x2−−−−−−√=π2
∫a0a2−x2−−−−−−√dx=πa24
∫a0xm(an−xn)pdx=am+1+np Γ[(m+1)/n] Γ(p+1)nΓ[(m+1)/n+p+1]