∫（asinx+bcosx）dx／（csinx+dcosx）= 1/(c^2+d^2)*∫ {(ac+bd)*[csinx+dcosx]+(bc-ad)*[-dsinx+ccosx]}dx／(csinx+dcosx)= (ac+bd)/(c^2+d^2)*∫1 dx+(bc-ad)/(c^2+d^2)*∫d(csinx+dcosx)/(csinx+dcosx）= (ac+bd...