underset(lim)(x→α)dfrac(sinx-sinα)(x-α)．

lim _(xarrow 0)dfrac ({e)^x-(e)^sin x}(x-sin x)..

lim _(xarrow -1)dfrac (x-{x)^3}(sin pi x)=

lim _(xarrow 0)dfrac ({e)^x-(e)^-x}(sin x)=()-|||-__。。

lim ((sin x))^tan x-|||-arrow dfrac (pi )(2)

(2) lim _(xarrow 0)dfrac ({e)^x-(e)^-x}(sin x);

(8)lim ((sin x))^tan x-|||-arrow dfrac (pi )(2)

求极限：lim _(xarrow infty )((sin dfrac {1)(x)+cos dfrac (1)(x))}^x-|||-__ __求极限：

计算：underset(lim)(x→0)(tanx-sinx)/((x)^3)．计算：$\underset{lim}{x→0}$$\frac{tanx-sin

填空题-|||-lim _(xarrow 0)dfrac ({e)^x-(e)^-x}(sin x)= __

求极限underset(lim)(x→0)cotx（(1)/(sinx)-(1)/(x)）求极限$\underset{lim}{x→0}$cotx（$\frac