y=sqrt(xsinx) y'=1/2[1/sqrt(xsinx)]*(sinx+xcosx) y=(x－1)(x－2)(x－3)y'=(x-2)(x-3)+(x-1)(x-3)+(x-1)(x-2) y=x+1分之x y=x^2/(x+1) y'=2x/(x+1)+x^2*(-1)*(x+1)^(-2) y=((e^x)/x)^(cosx) y=e^(xcosx) / x^cosx ...