(2) lim _(xarrow 1)dfrac ({x)^2-2x+1}({x)^2-1};
lim _(xarrow 1)(dfrac (2)({x)^2-1}-dfrac (1)(x-1)) ;
1.求下列极限.-|||-(1) lim _(xarrow -2)(3(x)^2-5x+2) --|||-(4) lim _(xarrow 1)dfrac ({
A.lim _(xarrow 1)dfrac ({x)^2+x-2}({x)^2-1}=lim _(xarrow 1)dfrac ((x-1)(x+2))((x
1.计算下列极限:-|||-(4) lim _(xarrow 1)(dfrac (2)({x)^2-1}-dfrac (1)(x-1)).
lim _(xarrow infty )dfrac ({x)^2-1}(2{x)^2-3x+1}=-|||-__-|||-___________________
题目:lim _(xarrow infty )dfrac ({x)^2-1}(2{x)^2-x-1}=-|||-__题目:
求lim _(xarrow infty )dfrac ({x)^2-1}(2{x)^2-x-1}-|||-__;求;
极限 lim _(xarrow 1)dfrac ({x)^2-1}(1-x)=( )极限( )A.-2B.0C.2D.1
lim _(xarrow 1)dfrac ({x)^2-1}(x-1)(e)^dfrac (1{x-1)}=