y=e^2x则dy?

y=e^2x则dy? y=e^2x,dy= y=e^-x^2,求dy y=e^x^2 则dy=( )A e^x^2 B e^x^2dx C 2Xe^x^2dy D2e^(2x) dy 设y=[e^x+e^(-x)]^2,求dy dy/dx,y=(1+x+x^2)e^x y=x*e^y,则dy= x^2+y^2=e^y求dy/dx 微分方程 dy/dx=(e^y+3x)/x^2 dy/dx=(e^x+x)(1+y^2)通解 x=sin(y/x)+e^2 求dy/dx y=e^x/x^2+sin2x 求dy/dx dy/ dx +2y=x*e^x的通解, 设y=cos(x^2+e^x)求dy y=e^sin(x^2+根号x),求dy 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? 设函数Y=e^√x,则dy=?