(8) lim _(xarrow dfrac {pi )(2)}dfrac (tan x)(tan 3x)
(8) lim _(xarrow dfrac {pi )(2)}dfrac (tan x)(tan 3x)
lim _(xarrow 0)dfrac (x-tan x)(arctan {x)^3};;
极限lim _(xarrow 0)dfrac (tan 3x)(x)=__________极限__________
(6) lim _(xarrow infty )dfrac (arctan x)(x)
(2) lim _(xarrow infty )dfrac (arctan x)(x).
lim _(xarrow infty )((dfrac {x)(2+x))}^3x
.求极限 lim _(xarrow infty )dfrac (arctan x)(x)..
lim _(xarrow 0)dfrac (tan 5x)(3x)=dfrac (5)(3) ()
lim _(xarrow pi )dfrac (sin 3x)(tan 5x);;