8 单选 lim _(xarrow {0)^x}dfrac (1+{2)^dfrac (1{x)}}(1-{2)^dfrac (1{x)}}=

lim _(xarrow 0)((dfrac {1+{2)^x}(2))}^dfrac (1{x)}= __

lim _(xarrow 0)dfrac ({(1+{x)^2)}^dfrac (1{3)}-1}(sin {x)^2}=-|||-______________

lim _(xarrow 1)(dfrac (a)(1-{x)^2}+dfrac (x)(x-1))=dfrac (3)(2) = __

(2) lim _(xarrow 0)[ dfrac (1)(ln (1+{tan )^2x)}-dfrac (1)(ln (1+{x)^2)}]

(2) lim _(xarrow 0)[ dfrac (1)(ln (1+{tan )^2x)}-dfrac (1)(ln (1+{x)^2)}]

2.lim _(xarrow 0)(dfrac (2+{e)^dfrac (1{x)}}(1+{e)^dfrac (4{x)}}+dfrac (sin x)(|

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

(8) lim _(xarrow 0)dfrac (xtan x)(sqrt {1-{x)^2}-1}

计算极限__-|||-lim _(xarrow 0)dfrac ({(1+{x)^2)}^dfrac (1{3)}-1}(xtan x)=计算极限

lim _(xarrow 0)((cos x))^dfrac (1{ln (1+{x)^2)}}..