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

求极限lim _(xarrow 2)(dfrac (1)({x)^2-3x+2})-(dfrac (1)(x-2))-|||-__求极限

求lim _(xarrow infty )dfrac ({x)^2-3x+2}({x)^2-1}-|||-__求

1.计算下列极限:-|||-(1) lim _(xarrow -1)dfrac ({x)^2+2x+1}(x-1) ;-|||-(3) lim _(xarrow

1.求下列函数的极限.-|||-(1) lim _(xarrow 2)dfrac ({x)^2-4}({x)^2-3x+2} ;

A.lim _(xarrow 1)dfrac ({x)^2+x-2}({x)^2-1}=lim _(xarrow 1)dfrac ((x-1)(x+2))((x

计算下列函数的极限。-|||-lim _(xarrow 1)dfrac ({x)^2-3x+2}({x)^2-1}

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

[题目] lim _(xarrow 1)dfrac (sqrt {3-x)-sqrt (1+x)}({x)^2+x-2}= __

)求下列极限:-|||-(1) lim _(xarrow 1)dfrac ({x)^2-x+1}({(x-1))^2} =-|||-(3) lim _(xarr

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