lim _(xarrow infty )((dfrac {x)(2+x))}^3x
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计算 lim _(xarrow infty )((1+dfrac {2)(x))}^3x
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计算 lim _(xarrow infty )((1+dfrac {2)(x))}^3x
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2.求极限 lim _(xarrow infty )[ (2+x)(e)^dfrac (1{x)}-x]
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2.求极限 lim _(xarrow infty )[ (2+x)(e)^dfrac (1{x)}-x]
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16、求极限 lim _(xarrow infty )((dfrac {x-1)(x+2))}^3x
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16、求极限 lim _(xarrow infty )((dfrac {x-1)(x+2))}^3x
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求lim _(xarrow +infty )(sqrt ({x)^2+x}-x)
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求lim _(xarrow +infty )(sqrt ({x)^2+x}-x)求
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) lim _(xarrow +infty )(sqrt ({x)^2+x}-sqrt ({x)^2-x});
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) lim _(xarrow +infty )(sqrt ({x)^2+x}-sqrt ({x)^2-x});
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) lim _(xarrow +infty )(sqrt ({x)^2+x}-sqrt ({x)^2-x});
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) lim _(xarrow +infty )(sqrt ({x)^2+x}-sqrt ({x)^2-x});
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(2)若 lim _(xarrow infty )((1+dfrac {k)(x))}^-3x=(e)^-1 ,则 k= __
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(2)若 lim _(xarrow infty )((1+dfrac {k)(x))}^-3x=(e)^-1 ,则 k= __
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7.[填空题]-|||-lim _(xarrow infty )dfrac (arctan x)(tan 3x)= __
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7.[填空题]-|||-lim _(xarrow infty )dfrac (arctan x)(tan 3x)= __
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(7) lim _(xarrow +infty )(sqrt ({x)^2+x}-sqrt ({x)^2-x}) ;
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(7) lim _(xarrow +infty )(sqrt ({x)^2+x}-sqrt ({x)^2-x}) ;
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(2) lim _(xarrow infty )dfrac (arctan x)(x).
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(2) lim _(xarrow infty )dfrac (arctan x)(x).
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