lim[tan(2x+x^3)⼀sin(x-x^2)],x趋向于0,

2025-06-24 15:35:49
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回答1:

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,