题目内容
(请给出正确答案)
[主观题]
求下列微分方程的通解: (1)yˊ+y=e-x; (2)yˊ+2xy=4x; (3)xyˊ=x-y; (4)(x2+1)yˊ+2xy=4x2;
求下列微分方程的通解: (1)yˊ+y=e-x; (2)yˊ+2xy=4x; (3)xyˊ=x-y; (4)(x2+1)yˊ+2xy=4x2; (5)xyˊ+y=xex; (6)yˊ+ytanx=cosx; (7)xyˊ+(1-x)y=e2x; (8)(y2-6x)yˊ+2y=0; (9)(x2-1)dy+(2xy-cosx)dx=0; (10)ydx+(xy+x-ey)dy=0.
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