what is the integral of 13e^(-0.2x) sinx? i'm using the solving for the unknown integral method. i did this twice (each time i took the integral twice, moved the unknown integral to the same side, and divided by 13.52?? I still cannot figure out what i am doing wrong. solve for the diffential. dy/dx = x-4+xy-4y y(0)=4 how can i move it so that x is on one side and y on the other? what is the integral of xy?