(2)极限 lim _(xarrow infty )((1-dfrac {1)(2x))}^dfrac (x{2)}= () .-|||-(A)e (B) ^-
(7)已知极限 lim _(xarrow +infty )(dfrac ({x)^2}(x+1)-x-a)=2, 则常数a是 () 。(2017会计选择2 )-
极限lim _(xarrow infty )((dfrac {x)(1+x))}^5x=A.lim _(xarrow infty )((dfrac {x)(1+
(2) lim _(xarrow infty )((dfrac {x+1)(x-1))}^-dfrac (x{2)}= () ;-|||-(A)1 (B) ^d
6、极限 lim _(xarrow +infty )(sqrt ({x)^2+x}-sqrt ({x)^2+1})= () 。(较难)-|||-A、0 B、 d
lim _(xarrow infty )((1-dfrac {1)(2x))}^x+2= ).A.lim _(xarrow infty )((1-dfrac {
3.求下列函数的极限.-|||-(1) lim _(xarrow infty )x((e)^dfrac (1{x)}-1);-|||-(2) lim _(xar
求下列极限lim _(xarrow infty )dfrac ({(1+dfrac {1)(x))}^(x^2)}({e)^x}求下列极限
(3)已知极限 lim _(xarrow +infty )(dfrac ({x)^2}(x+1)-x-a)=2, 则常数a是(
lim _(xarrow +infty )(({3)^x+(9)^x)}^dfrac (1{x)}= ()-|||-(A)0 (B)9 (C)9e 3 (D)∞