5.根据函数极限或无穷大定义,填写下表:-|||-(x)arrow A (x)arrow infty (x)arrow +infty (x)arrow infty -|||-ε>0,-|||-gt 0,-|||-arrow (x)_(0) 使当 lt |x-(x)_(0)|lt 8 时,-|||-即有 |f(x)-A|lt g,-|||-(x)arrow A (x)arrow infty (x)arrow +infty (x)arrow =infty -|||-arrow ({x)_(0)}^4-|||-arrow (x)_(0)-|||-∀M>0,-|||-gt 0,-|||-x→∞ 使当 |x|gt x| 时,-|||-即有 |f(x)|gt M,-|||-x→+∞-|||-x→-∞