求微分方程[img=101x35]17da5f15503f795.png[/img] 的通解,实验命令为(). A: dsolve(Dy+2*x*y=x*exp(-x^2))ans=C1*exp(-x^2) + (x^2*exp(-x^2))/2 B: dsolve('Dy+2*x*y=x*exp(-x^2)','x')ans=C1*exp(-x^2) + (x^2*exp(-x^2))/2 C: dsolve('Dy+2*x*y=x*exp(-x^2)')ans=C1*exp(-x^2) + (x^2*exp(-x^2))/2
求微分方程[img=101x35]17da5f15503f795.png[/img] 的通解,实验命令为(). A: dsolve(Dy+2*x*y=x*exp(-x^2))ans=C1*exp(-x^2) + (x^2*exp(-x^2))/2 B: dsolve('Dy+2*x*y=x*exp(-x^2)','x')ans=C1*exp(-x^2) + (x^2*exp(-x^2))/2 C: dsolve('Dy+2*x*y=x*exp(-x^2)')ans=C1*exp(-x^2) + (x^2*exp(-x^2))/2
求解微分方程[img=203x35]17e443a63e2e7ec.png[/img]的通解的命令为： A: dsolve('(x^2-1)*Dy+2*x*y-sin(x)=0', 'x') B: dsolve('(x^2-1)*Dy+2*x*y-sin(x)=0') C: dsolve('(x^2-1)*Dy+2*x*y-sin(x)=0', 't') D: dsolve('(x^2-1)*Dy+2*x*y-sin(x)=0', 'y')
求解微分方程[img=203x35]17e443a63e2e7ec.png[/img]的通解的命令为： A: dsolve('(x^2-1)*Dy+2*x*y-sin(x)=0', 'x') B: dsolve('(x^2-1)*Dy+2*x*y-sin(x)=0') C: dsolve('(x^2-1)*Dy+2*x*y-sin(x)=0', 't') D: dsolve('(x^2-1)*Dy+2*x*y-sin(x)=0', 'y')
y=cos(3x²-2)，求dy
y=cos(3x²-2)，求dy
设y=x³，则dy|x=2
设y=x³，则dy|x=2
dy/dx=x^2+y^2,求微分方程
dy/dx=x^2+y^2,求微分方程
求下列微分方程的通解,xdy/dx=(yIn^2)y,[（y+1)^2]dy/dx+x^3=0,dy/dx=2^(x+y),6x+y
求下列微分方程的通解,xdy/dx=(yIn^2)y,[（y+1)^2]dy/dx+x^3=0,dy/dx=2^(x+y),6x+y
计算在处（1）当时，（），dy=()（2）当时,=（），=
计算在处（1）当时，（），dy=()（2）当时,=（），=
求函数y=㏑(1X^2)的微分dy
求函数y=㏑(1X^2)的微分dy
求微分方程xydx=√(1+x^2)dy的通解
求微分方程xydx=√(1+x^2)dy的通解
一阶微分方程dy/dx=xcos(x^2)/y
一阶微分方程dy/dx=xcos(x^2)/y