已知 x=e^t ,dy/dx=dy/xdt .分析变换具体步骤 d^2y/dx^2=(d^2y/dt^2-dy/dt)/x^2 ,d^y3/dx^3
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/18 07:08:19
![已知 x=e^t ,dy/dx=dy/xdt .分析变换具体步骤 d^2y/dx^2=(d^2y/dt^2-dy/dt)/x^2 ,d^y3/dx^3](/uploads/image/z/1064269-37-9.jpg?t=%E5%B7%B2%E7%9F%A5+x%3De%5Et+%2Cdy%2Fdx%3Ddy%2Fxdt+.%E5%88%86%E6%9E%90%E5%8F%98%E6%8D%A2%E5%85%B7%E4%BD%93%E6%AD%A5%E9%AA%A4+d%5E2y%2Fdx%5E2%3D%28d%5E2y%2Fdt%5E2-dy%2Fdt%29%2Fx%5E2+%2Cd%5Ey3%2Fdx%5E3)
xN0_%TĎ $]9lh#RvJ.H,,xR[b` u}qooәS'*56Lԉ=k0\_-ۇSs9x_ξ^HIkLI*MJvڻfYh,gK#Q{&L+{^vq>8WUɏOš;N5I'3EHY^f)*W\YE/y֥]b|0JP!qD@3Rʇý@2FES*LFK_5F#a(TX{TZZ%
已知 x=e^t ,dy/dx=dy/xdt .分析变换具体步骤 d^2y/dx^2=(d^2y/dt^2-dy/dt)/x^2 ,d^y3/dx^3
已知 x=e^t ,dy/dx=dy/xdt .分析变换具体步骤 d^2y/dx^2=(d^2y/dt^2-dy/dt)/x^2 ,d^y3/dx^3
已知 x=e^t ,dy/dx=dy/xdt .分析变换具体步骤 d^2y/dx^2=(d^2y/dt^2-dy/dt)/x^2 ,d^y3/dx^3
x=e^t ,dy/dx=dy/xdt
dt/dx=1/x
dy/dx=e^(-x^2)
已知 x=e^t ,dy/dx=dy/xdt .分析变换具体步骤 d^2y/dx^2=(d^2y/dt^2-dy/dt)/x^2 ,d^y3/dx^3
设dy/dx∫(0,e^-x)f(t)dt=e^x,f(x)=?
dy/dx=x+y
x=f(t) y=g(t) 为什么dy/dx=(dy/dt)*(dt/dx)
x=2t+cost y=t+e^t 求dy/dx把t消除
dy/dx,y=(1+x+x^2)e^x
设x=e'sin t,y=e'cos t,求dy/dx.
设x=e^-t y=e^-2t 求dy/dx
设x=3e^-t,y=2e^t,则dy/dx等于多少?
设x=3e^-t,y=2e^t,则dy/dx等于多少?
参数方程x=(t-1)e^t,y=1-t^4,求dy/dx
d(t(dy/dt))/dx为什么等于t² d²y/dt²+t dy/dt作变量代换x=lnt简化方程d^2y/dx^2-dy/dx+e^2x*y=0x=lntdx/dt=1/tdy/dx=(dy/dt)/(dx/dt)=t dy/dtd²y/dx²=[d/dt(dy/dx)]/(dx/dt)=t² d²y/dt²+t dy/dt代入d^2y/dx^2-
微分方程(x+y)(dx-dy)=dx+dy的通解
(x^2)dy+(y^2)dx=dx-dy
解方程 x(dy/dx)^3=(1+dy/dx)
y=e^(x^x) dy/dx=?
微分方程 dy/dx=(e^y+3x)/x^2