lim ln(1+e^x)/根号(1+x^2)

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lim[ln(1+x)+ln(1-x)]/(ex^2-1) lim[ 2e^(2x)-e^(x)-3x-1]/[e^(x
求极限lim(x→+∞）[ln(1+e^x)]/√(1+x^2)
lim x->0 ln(1+x)/e^x-1
lim(x->0)[cosx-e^(-x^2/2)]/[x^2[x+ln(1-x)]]
求极限：lim（x^2-ln(1+x)）/e^x+1 (x趋于0)
求极限,lim(x->0) (e^x-e^sinx ) / [ (tanx )^2 * ln(1+2x)]
lim(x趋于0)（1-cosx）/[ln(1+x)(e^x-1)]
lim[ln(1-x)+sinxf(x)]/[e^(x^2)-1]=0,求f'(0)
lim(x→0)[ln(1+x)]/x=lim(x→0)[ln(1+x)]^(1/x)
x→0时 lim[1/ln(1+x^2)-1/(sinx)^2] =lim[(sinx)^2-ln(1+x^2)]/(s