
4、 lim _(xarrow infty )dfrac (sin x)(x)= __ ;
求lim _(xarrow infty )dfrac (sin dfrac {3)(x)}(sin dfrac {2)(x)}求
lim _(xarrow infty )xcdot sin dfrac (3)(x)=
[题目]-|||-lim _(xarrow infty )dfrac (sqrt {4{x)^2+x-1}+x+1}(sqrt {{x)^2+sin x}}=
lim _(xarrow 0)dfrac (sin 4x)(sin x)= )-|||-__lim _(xarrow 0)dfrac (sin 4x)(sin
计算下列极限:(1) lim _(xarrow 0)(x)^2sin dfrac (1)(x);-|||-(2) lim _(xarrow infty )dfr
计算__-|||-lim _(xarrow infty )((sin dfrac {1)(x)+cos dfrac (1)(x))}^x计算
lim _(xarrow infty )(1-cos x)sin dfrac (1)(x)= __ _.
[题目] 求极限: lim _(xarrow -infty )dfrac (sqrt {4{x)^2+x-1}+x+1}(sqrt {{x)^2+sin x}}
[题目]求 lim _(xarrow infty )((sin dfrac {2)(x)+cos dfrac (1)(x))}^x