limx趋近于0 tan2x分之x

limx趋近于0 tan2x分之x limx趋近于0x分之tan2x limx趋近于0 sin4x/tan2x= limx趋近于0sin3x/2x limx趋近于0lnsinx/x limx趋近于0x乘cot3x x趋近于0 x分之tan2x-sinx求极限 麻烦写下步骤 x趋近于0时,计算limsinx（1+x)/tan2x limx趋近于0xlnx limx趋近于0lnarccosx limx趋近于0x^(x^x-1)的极限 证明x趋近于0+ limx[1/x]=1 limx趋近于0(sinx/x)^(1/x^2) limx趋近于0+ x·e^1/x limx趋近于0sin2xln(1+x)/4x^3 limx趋近于0 (e^2x)-1/x limx趋近于0 1-gen1+x^2/x^2 limx趋近于0 x^3-1/x-1