1095| 3
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[交流学习] 玩个游戏吧!楼上给楼下出题 |
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点评
幂指函数取对数,然后等式两端同时求导就OK
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有志者事竟成,破釜沉舟,百二秦川终属楚;
苦心人天不负,卧薪尝胆,三千越甲可吞吴。 |
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