lim _(xarrow 0)dfrac (sin (x{y)^2)}({y)^2}=______.

lim _(xarrow 0),dfrac (xy)({x)^2+(y)^2}=

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

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

lim _(xarrow 0)dfrac (x)(x+sin x)=（）。A.2B.1C.lim _(xarrow 0)dfrac (x)(x+sin x)=D

(11) lim _(xarrow 0)((dfrac {sin x)(x))}^dfrac (1{{x)^2}}

lim _(xarrow 2)dfrac (sin (x-2))({x)^2-4}=lim _(xarrow 2)dfrac (sin (x-2))({x)^2

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

求lim _(xarrow 0)(dfrac (1)({sin )^2x}-dfrac (1)({x)^2}).求.

求抛物线y=x2 与直线x+y+2=0 之间的最短距离.2、 lim _(xarrow y)+dfrac (ln (1-x-y))(sin (2x+2y)cdo

计算 lim _(xarrow 0)dfrac (1)({x)^2}ln dfrac (sin x)(x) .