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[函数] 函数不等式有啥证法

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hjfmhh posted 2025-8-3 09:13 |Read mode

证明: $x \in\left(-1, \frac{\pi}{2}\right), \ln (x+1)<\sin x$
这个函数不等式有哪些证法？

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kuing posted 2025-8-3 14:06

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