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[不等式] 三角形中,求三角相关正弦的最大值

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lemondian posted 2024-1-30 10:40 |Read mode
(1)在$\triangle ABC$中,求$3sinA+4sinB+18sinC$的最大值。
(2)已知$p,q>0$,在$\triangle ABC$中,求$sinA+psinB+qsinC$的最大值。

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kuing posted 2024-1-30 14:34
三角函数前加 \ 永远不记得

(1)见《撸题集》P.440~441 题目 4.6.19

(2)见 zhihu.com/question/613495697/answer/3137782388

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这么难搞呀😅  posted 2024-1-30 22:45

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cherry posted 2024-4-30 14:08
kuing 发表于 2024-1-30 14:34
三角函数前加 \ 永远不记得

(1)见《撸题集》P.440~441 题目 4.6.19
哈哈哈,没办法,很多人记不住三角函数是函数,需要正体.

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hbghlyj posted 2024-4-30 19:07
cherry 发表于 2024-4-30 06:08
哈哈哈,没办法,很多人记不住三角函数是函数,需要正体.
左边输入 LaTeX 代码及文字,右边即时预览。
有sin/cos/tan按钮可以点击

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