(15) lim _(xarrow pi )dfrac (sin 2(x-pi ))(x-pi );

计算 lim _(xarrow dfrac {pi )(2)}dfrac (ln sin x)({(pi -2x))^2}

求lim _(xarrow dfrac {pi )(2)}dfrac (ln sin x)({(pi -2x))^2}求

lim _(xarrow dfrac {pi )(2)}((sin x))^tan x=（ ）（ ）

lim _(xarrow dfrac {pi )(2)}dfrac (cos x)(pi -2x)..

1.求下列极限：（2）lim _(xarrow dfrac {pi )(2)}dfrac (ln sin x)({(pi -2x))^2}1.求下列极限：（2）

lim _(xarrow 1)dfrac (sin pi x)(x-1);-|||-__

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

lim _(xarrow pi )dfrac (sin 3x)(tan 5x);;

lim _(xarrow pi )dfrac (sin 3x)(tan 5x)。。

(2) lim _(xarrow +infty )((dfrac {2)(pi )arctan x)}^x;