计算下列极限lim _(xarrow 2)dfrac (3{x)^2-5x+2}(7{x)^2-5x+1}-|||-__

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

1.计算下列极限:-|||-(1) lim _(xarrow 2)dfrac ({x)^2+5}(x-3) =-|||-(4) lim _(xarrow 1)d

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

3.计算下列极限.-|||-(1) lim _(xarrow 2)(-2) ;-|||-(3) lim _(xarrow 2)dfrac ({x)^2-16}(

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

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

计算下列极限：(1) lim _(xarrow 0)(x)^2sin dfrac (1)(x);-|||-(2) lim _(xarrow infty )dfr

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

计算下列极限lim _(xarrow 0)(x)^2sin dfrac (1)(x)lim _(xarrow 0)(x)^2sin dfrac (1)(x)计算

计算下列极限 (1) lim _(xarrow 0)((1-2{x)^2)}dfrac (1)(xsin x)-|||-__(1) lim _(xarrow 0