求lim _(xarrow 3)dfrac (sqrt {x+1)-2}(x-3)求
计算函数极限(1)lim _(xarrow 1)dfrac (x-3)(x+2)(2)lim _(xarrow 1)dfrac (x-3)(x+2)(3)lim
3.求下列极限:-|||-(1) lim _(xarrow 0)sqrt ({x)^2-2x+5} ;-|||-(4 lim _(xarrow 0)dfrac
求下列极限:-|||-(6) lim _(xarrow +infty )(x)^dfrac (3{2)}(sqrt (x+2)-2sqrt (x+1)+sqrt
lim _(xarrow 0)dfrac (sqrt {x+1)-1}(x)= () . .
7.极限 lim _(xarrow 4)dfrac (sqrt {2x+1)-3}(sqrt {x)-2}= ()-|||-
[例3]求极限 lim _(xarrow infty )dfrac (sqrt {4{x)^2+x-1}+x+1}(sqrt {{x)^2+sin x}}
(5) lim _(xarrow -1)dfrac (sqrt {x+5)-2}(x+1):
(4) lim _(xarrow 0)dfrac (sqrt {x+1)-1}(x);
lim _(xarrow 1)dfrac (sqrt [3]{x)-1}(sqrt {x)-1}=..