(1-x^2)^(1/3)=1-1/3*x^2分漏液绝子=e^2x*(e^x-1)-e^x+1=(1+2x)*x-x=2x^2极限埋雀=2/返姿(-1/3)=-6
原式=lim(x->凯腊枣0) {[e^(2x)-1]*(e^x-1)}/盯拆[(1-x^2)^(1/3)-1]=lim(x->0) (2x*x)/局埋[(-x^2)*(1/3)]=-6
