With the aid of popularizing " 1/x,x" into "f(x),g(x) " in the second important limit,a simple and useful solution for 1∞-type limit was given and demonstrated that this method has an effective practicability in concrete examples.%将第二个重要极限"limx→∞(1+1/x)x=e"中的1/xx,推广到函数f(x),g(x),从而得到"1∞"型未定式极限的简便算法,给出算例说明该算法的实用性.
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