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original poster: isee

[函数] 2018年全国卷I理科第16题 三角函数

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游客 posted 2018-6-13 16:31
半径为1的圆的内接三角形的最大面积?

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lemondian posted 2018-7-29 01:36
Last edited by hbghlyj 2025-5-3 21:05回复 13# kuing

kuing:你看看这个:(网上看到的)
设 $a$ 是实常数,求函数 $f(x)=a \sin x+\sin 2 x(x \inR)$ 的最小值。
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001Qxx0Tzy7l6nIS8GSb2&690.jpg

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kuing posted 2018-7-29 01:56
回复 22# lemondian

懒得看,也懒得验证结果是否与我的等价

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