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数学
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x趋近于0时limarctan1/x^2的极限
人气:437 ℃ 时间:2020-05-16 21:39:03
解答
lim arctan1/x² = arctan(+∞) = ½π ± kπ (k= 0,1,2,3,.)
x→0
通常在主值范围内考虑,是½π.
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