y=x^2+3x+1 求dy

y=x^2+3x+1 求dy 求方程 dy/dx+x(y-x) +x^3(y-x)^2=1的通解~ y=x^2x,求dy x^2+xy+y^3=1,求dy/dx y=f[(x-1)/(x+1)],f'(x)=arctanx^2,求dy/dx,dy y=(x-1) * 立方根(x+2) / (x-3)^(2) * e^(2x) 求dy y=sin(x^2),求dy/d(x^3) y=sin(x^3),求dy/d(x^2) y=sin^2 {x/(x+1)} 求dy y=2^x-cosx/1-x 求dy y=3x+sin2x求dy, y=x^3/cosx 求dy y=tan2xln(3x) 求dy y=f(-x^3)求dy y=sinx/x^2,求dy y=x×2^arcsinx 求dy y=e^-x^2,求dy y=(tanx)/x^2,求dy