(5) lim _(xarrow 1)dfrac (sqrt {5x-4)-sqrt (x)}(x-1) ;

(5) lim _(xarrow 1)dfrac (sqrt {5x-4)-sqrt (x)}(x-1);

(5) lim _(xarrow 1)dfrac (sqrt {5x-4)-sqrt (x)}(x-1);

(4) lim _(xarrow 1)dfrac ({x)^2-sqrt (x)}(sqrt {x)-1};

(5) lim _(xarrow -1)dfrac (sqrt {x+5)-2}(x+1):

3.求下列极限:-|||-(1) lim _(xarrow 0)sqrt ({x)^2-2x+5} ;-|||-(4 lim _(xarrow 0)dfrac

lim _(xarrow 1)dfrac (sqrt [3]{x)-1}(sqrt {x)-1}=..

求极限lim _(xarrow 0)dfrac (x)(sqrt {1-x)-1}= ()lim _(xarrow 0)dfrac (x)(sqrt {1-x)

求极限 lim _(xarrow 0)dfrac ({x)^2((e)^x-1)}(sqrt {1+tan x)-sqrt (1+x)}

lim _(xarrow 0)dfrac (sqrt {1+5x)-sqrt (1-3x)}({x)^2+2x}= . __

(4) lim _(xarrow 0)dfrac (sqrt {x+1)-1}(x);