帮我解几道关于不等式的数学题,1:已知a,b,c∈R+,求证:a^3+b^3+c^3≥1/3(a2^+b^2+c^2)(a+b+c)2:已知A(0,9),B(0,16)是Y轴正半轴上两点,C(X,0)是X轴上任意1点,求当C在何位置时∠ACB最大?能解出一题也万分感谢了!
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/03 18:09:58
![帮我解几道关于不等式的数学题,1:已知a,b,c∈R+,求证:a^3+b^3+c^3≥1/3(a2^+b^2+c^2)(a+b+c)2:已知A(0,9),B(0,16)是Y轴正半轴上两点,C(X,0)是X轴上任意1点,求当C在何位置时∠ACB最大?能解出一题也万分感谢了!](/uploads/image/z/2656474-34-4.jpg?t=%E5%B8%AE%E6%88%91%E8%A7%A3%E5%87%A0%E9%81%93%E5%85%B3%E4%BA%8E%E4%B8%8D%E7%AD%89%E5%BC%8F%E7%9A%84%E6%95%B0%E5%AD%A6%E9%A2%98%2C1%3A%E5%B7%B2%E7%9F%A5a%2Cb%2Cc%E2%88%88R%2B%2C%E6%B1%82%E8%AF%81%3Aa%5E3%2Bb%5E3%2Bc%5E3%E2%89%A51%2F3%28a2%5E%2Bb%5E2%2Bc%5E2%29%28a%2Bb%2Bc%292%3A%E5%B7%B2%E7%9F%A5A%280%2C9%29%2CB%280%2C16%29%E6%98%AFY%E8%BD%B4%E6%AD%A3%E5%8D%8A%E8%BD%B4%E4%B8%8A%E4%B8%A4%E7%82%B9%2CC%28X%2C0%29%E6%98%AFX%E8%BD%B4%E4%B8%8A%E4%BB%BB%E6%84%8F1%E7%82%B9%2C%E6%B1%82%E5%BD%93C%E5%9C%A8%E4%BD%95%E4%BD%8D%E7%BD%AE%E6%97%B6%E2%88%A0ACB%E6%9C%80%E5%A4%A7%3F%E8%83%BD%E8%A7%A3%E5%87%BA%E4%B8%80%E9%A2%98%E4%B9%9F%E4%B8%87%E5%88%86%E6%84%9F%E8%B0%A2%E4%BA%86%21)
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