limx趋近于0x^3-4/4x^2+x-2

limx趋近于0sin2xln(1+x)/4x^3 limx趋近于0 4x^3-2x^2+x/3x^2+2x limx趋近于0x^3-4/4x^2+x-2 limx趋近于0sin3x/2x lim1/根号n＊sin （n趋近于无穷）,limx^3+1/4-x^2(x趋近于2),limx^2+1/x-1/x^2(x...lim1/根号n＊sin （n趋近于无穷）,limx^3+1/4-x^2(x趋近于2),limx^2+1/x-1/x^2(x趋近于-2) limx趋近于0时2arcsinx/3x limx趋近于0,2arcsinx/3x= 高数洛必达法则 limx趋近于0(cosx/xsinx–1/x^2)=?limx趋近于0(1/(sinx)^2-1/x^2)=?limx趋近于无穷(x^2*arcsin1/x除以(4x–1))=?limx趋近于0[(e^x的三次方–1-x^3)/(sin2x)的六次方]=?limx趋近于0(1/x^2-(cotx)^2)=? limx趋近于无穷大(2x+1)^3(x-3)^2/(x^5+4) 证明limx^2-6x+5/x-5=-4,x趋近于-3 limx趋近于0〔(sinx^2-2x^3+5x)/(tanx+4x^2)〕 用泰勒公式求极限 limx趋近于0(cosx-e^-x^2/2)/x^4 limx趋近于0 1-gen1+x^2/x^2 limx趋近于0 x^3-1/x-1 limx趋近于0(sinx/x)^(1/x^2) limx趋近于0 (e^2x)-1/x limx趋近于3,x/(x^2-9) 求极限 limx趋近于0 tan2x分之x