∫ (a²-x²)^(3/2) / x^6 dx代x = a*sinz,dx = a*cosz dz(a²-x²)^(3/2) = (a²-a²sin²x)^(3/2) = (a²cos²x)^(3/2) = a³cos³x原式 = ∫ [a³cos³x / ...