(cosy+ycosx)dx+(sinx-siny)dy=0

(cosy+ycosx)dx+(sinx-siny)dy=0 dy/dx-ycosx=e^sinx （cosy）^x=（sinx）^y求dy／dx 如果xy=sinx * cosy,求dy/dx 微分方程(siny+y^2sinx)dx+(xcosy-2ycosx)dy=0.求详解. 微分方程的题微分方程dy/dx+ycosx-e^(-sinx)=0的通解为.（写写过程, 设xsiny+ysinx=y 求y' siny+xcosy*y'+y'*sinx+ycosx=0 为啥cosy后面还加个y' sinx前面加个y'? ln y = e^x sinx 求dy/dx.教材的答案是[ye^ycosx]/[1-ye^ysinx] 不定积分通解cosx siny dy=cosy sinx dx,y(x=0)=pi/4 求方程(xy+y+sinx)dx+(x+cosy)dy=0的通解 求通解 y'+ycosx=e^-sinx 1.e^x+ydy=dx 2.dy/dx=y*x+y 3.y'+ycosx=e^-sinx,y(0)=3 1.e^x+ydy=dx 2.dy/dx=y*x+y 3.y'+ycosx=e^-sinx,y(0)=3 求微分方程dy/dx-ycosx=x^2*e^sinx满足初始条件y丨(x=0)=-2的特解 ·(3x^2tany-y^2sinx)dx+(x^2sec^2y+2ycosx-4)dy=0如何求通解? 25.求方程dy/dx+ycosx=e^(-sinx)在初始条件y（0）=1时的特解 (sinx-siny)(sinx+siny)-(cosx+cosy)(cosx-cosy)等於? 已知实数xy满足|sinx|+|cosy|>|sinx-cosy|,且y∈（π,3π/2）,则|sinx+cosy|等于A sinx+cosy B -sinx-cosy C cosy-sinx D |sinx|-|cosy| 求微分方程(ycosx+sin2x)dx-dy=0的通解