17、单选 lim _(xarrow infty )dfrac (sin 3x+2x)(sin 2x-3x)-|||-A dfrac (1)(3)-|||-B -dfrac (1)(3)-|||-C -dfrac (2)(3)-|||-D dfrac (2)(3)

求lim _(xarrow infty )dfrac (sin dfrac {3)(x)}(sin dfrac {2)(x)}求

lim _(xarrow infty )dfrac (3{x)^2+5}(5x+3)sin dfrac (2)(x)= __

【题目]-|||-lim _(xarrow infty )x sin [ 1+dfrac {3)(x))] -sin [ ln (1+dfrac (1)(x))

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

lim _(xarrow infty )xcdot sin dfrac (3)(x)=

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

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

[题目] lim _(xarrow +infty )dfrac ({x)^3+(x)^2+1}({2)^x+(x)^3}(sin x+cos x)= __

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

1.求下列极限:-|||-(1) lim _(xarrow 0)dfrac (sin 2x)(x);-|||-(3) lim _(xarrow dfrac {p