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0(sinx/x)^(1/x^2)
limx趋近于无穷2x^3-x+1
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
limx趋近于0[3e^(x/x+1)-1]^(sinx/x)求极限
limx趋近于0时sin2x/3x等于多少
limx趋近于0时2arcsinx/3x
limx趋近于0 (tanx-sinx)/sin^3x
limx趋近于0 x2/sin2(x/3)
求极限limx趋近于0 (arcsinx/x)^(1/x2)
极限limx趋近于0,1/2+3∧1/x的结果为什么不存在