13.求极限 lim _(xarrow 0)dfrac ({({e)^x-(e)^-x)}^2}(ln (1+{x)^2)}

求极限lim _(xarrow 0)((dfrac {sin x)(x))}^dfrac (1{ln (1+{x)^2)}}求极限

求极限 lim _(xarrow 0)dfrac (ln (1+{x)^2)-ln (1+(sin )^2x)}(x{sin )^3x}

13.求极限 lim _(xarrow 0)((dfrac {{2)^x+(8)^x}(2))}^dfrac (1{x)}

1.求下列极限:-|||-(1) lim _(xarrow 0)dfrac ({e)^xcos x+5}(1+{x)^2+ln (1-x)} =-|||-(3)

求下列极限：lim _(xarrow 0)dfrac ({e)^x-(e)^-x-2x}(x-sin x)-|||-__.求下列极限：.

求下列极限-|||-lim _(xarrow 0)[ dfrac (1)(ln (x+sqrt {1+{x)^2})}-dfrac (1)(ln (1+x))]

1.求极限 lim _(xarrow 0)dfrac ({e)^x-(e)^sin x}({e)^(x^3)-1}.

求极限：（1）lim _(xarrow 0)dfrac ({e)^2x-2(e)^x+1}({x)^2cos x}；（2）lim _(xarrow 0)dfra

求下列极限:-|||-lim _(xarrow 0)(x)^2(e)^dfrac (1{{x)^2}}

极限 lim _(xarrow 0)dfrac ({(2+cos x))^x-(3)^x}((1-sqrt {1-{x)^2})ln (1+} 为() ()