多元函数求最值f(a,b,c)=1/根号(a+1) + 1/根号(b+1) +1/根号(c+1) ,abc=8,且a,b,c>0 .求函数f(a,b,c)的最大、最小值.原题 证明:1
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![多元函数求最值f(a,b,c)=1/根号(a+1) + 1/根号(b+1) +1/根号(c+1) ,abc=8,且a,b,c>0 .求函数f(a,b,c)的最大、最小值.原题 证明:1](/uploads/image/z/11290196-20-6.jpg?t=%E5%A4%9A%E5%85%83%E5%87%BD%E6%95%B0%E6%B1%82%E6%9C%80%E5%80%BCf%28a%2Cb%2Cc%29%3D1%2F%E6%A0%B9%E5%8F%B7%28a%2B1%29+%2B+1%2F%E6%A0%B9%E5%8F%B7%28b%2B1%29+%2B1%2F%E6%A0%B9%E5%8F%B7%28c%2B1%29+%2Cabc%3D8%2C%E4%B8%94a%2Cb%2Cc%3E0+.%E6%B1%82%E5%87%BD%E6%95%B0f%28a%2Cb%2Cc%29%E7%9A%84%E6%9C%80%E5%A4%A7%E3%80%81%E6%9C%80%E5%B0%8F%E5%80%BC.%E5%8E%9F%E9%A2%98+%E8%AF%81%E6%98%8E%EF%BC%9A1)
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