若y=x^2+x , 则dy=

若y=x^2+x , 则dy= y=e^2x则dy? 微积分.若x^y=y^x,则dy/dx.[x^2-xylnx]/[y^2-xylny] y=x^2x,求dy (x^2)dy+（y^2)dx=dx-dy y=[sin(x^4)]^2,则dy/dx=?,dy^2/dx^2=?,dy/d(x^2)=? y=x*sin2x则,dy=? y=e^2x,dy= 微分方程 dy/dx=(-2x)/y y=sinx/x^2,求dy y=x×2^arcsinx 求dy y=e^-x^2,求dy y=(tanx)/x^2,求dy y=xsin 2x,求dy y=(cos^2x) 求dy dy/dx=x+y x^y=y^x,求dy. y=e^x^2 则dy=( )A e^x^2 B e^x^2dx C 2Xe^x^2dy D2e^(2x) dy