问题标题:
lim[tan(2x+x^3)/sin(x-x^2)],x趋向于0,
问题描述:
lim[tan(2x+x^3)/sin(x-x^2)],x趋向于0,
彭继忠回答:
原极限=limx-->0(2x+x^3)/(x-x^2)(用诺必达发则)=limx-->0(2+3x^2)/(1-2x)=2,
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lim[tan(2x+x^3)/sin(x-x^2)],x趋向于0,