计算题-|||-16.求极限-|||-lim _(xarrow infty )dfrac (2{x)^2+x-1}(3{x)^3+4x-5}

[例3]求极限 lim _(xarrow infty )dfrac (sqrt {4{x)^2+x-1}+x+1}(sqrt {{x)^2+sin x}}

3.求下列极限:-|||-(1) lim _(xarrow 2)dfrac ({x)^2-3x-4}({x)^2-4} =-|||-(3) lim _(xarr

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

求极限lim _(xarrow infty )dfrac (3{x)^2+2x+5}(2{x)^2+3x-1}。求极限。

16、求极限 lim _(xarrow infty )((dfrac {x-1)(x+2))}^3x

[题目] 求极限: lim _(xarrow -infty )dfrac (sqrt {4{x)^2+x-1}+x+1}(sqrt {{x)^2+sin x}}

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

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

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

求下列极限（3）lim _(xarrow infty )(dfrac ({x)^3}(2{x)^2-1}-dfrac ({x)^2}(2x+1))求下列极限（3