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82问答网 > 弱弱地问下，为啥［arctan x］正无穷-0 =二分之派

弱弱地问下，为啥［arctan x］正无穷-0 =二分之派

2025-03-16 07:41:53

推荐回答（2个）

回答1：

可以划画一下arctanx的图像

当x趋于正无穷的时候费f（x）是接近二分之派的。

回答2：

因为arctan的取值范围就是（-π/2，π/2）这个区间内，当arctanx=正无穷时，x就趋近于π/2

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