lim {cosx-e（x∧2/2）〕/x∧2(x

lim {cosx-e（x∧2/2）〕/x∧2(x＋㏑（1-

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泰勒公式求极限题目如下 lim(x->0)(cosx-e^(-x^2/2))/x^2×(x+㏑(1-x))
lim(x->0)[cosx-e^(-x^2/2)]/[x^2[x+ln(1-x)]]
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