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

【题目】-|||-计算下列各极限:-|||-lim _(xarrow 0)dfrac (ln (1+3x))(sin 2x) ;

[题目] lim _(xarrow 0)(dfrac (1)({sin )^2x}-dfrac ({cos )^2x}({x)^2})= __

[题目]已知 lim _(xarrow 0)dfrac (sin 6x+xf(x))({x)^3}=0, 求 lim _(xarrow 0)dfrac (6+f

若lim _(xarrow 0)dfrac ({(1+a{x)^2)}^sin x-1}({x)^3}=6-|||-__，则lim _(xarrow 0)dfr

lim _(xarrow 0)dfrac ({x)^2sin dfrac (1)(x)}(tan x)=A.0B.1C.lim _(xarrow 0)dfrac

[题目]求 lim _(xarrow 0)(dfrac (1)({sin )^2x}-dfrac ({cos )^2x}({x)^2})

[题目]求 lim _(xarrow 0)(dfrac (1)({sin )^2x}-dfrac ({cos )^2x}({x)^2})

[题目]设 lim _(xarrow 0)dfrac ((1+x)(1+2x)(1+3x)+a)(x)=6 则a的值为-|||-()-|||-

[题目]求 lim _(xarrow infty )((sin dfrac {2)(x)+cos dfrac (1)(x))}^x

计算下列极限lim _(xarrow 0)(x)^2sin dfrac (1)(x)lim _(xarrow 0)(x)^2sin dfrac (1)(x)计算