e^(-y^2)+cos(x^2)=0 求dy/dx

e^(-y^2)+cos(x^2)=0 求dy/dx x=sin(y/x)+e^2 求dy/dx y=e^x/x^2+sin2x 求dy/dx 求dy/dx y=e^(2x+1) 求dy/dx +2y=e^x的通解. dy/dx+(e^((y^2)+x))/y=0 ysinx+cos(x-y)=0,求dy/dx|(x=π/2) ysinx-cos(x+y)=0,求 dy/dx 由2xy+e∧x-e∧y=0求dy/dx 已知e^y+e^x-xy^2=0,求dy/dx dx+(x-2e^y)dy=0 一阶线性方程 ∫（ e^x sin y- y )dx + (e^x cos y - 1)dy,是（2,0）的半圆周y=√2x-x^2