来自陈林鹏的问题
若a,b,c∈R+,abc=1.求证1a3(b+c)+1b3(c+a)+1c3(a+b)≥32.
若a,b,c∈R+,abc=1.求证1a3(b+c)+1b3(c+a)+1c3(a+b)≥32.
1回答
2020-11-29 03:39
若a,b,c∈R+,abc=1.求证1a3(b+c)+1b3(c+a)+1c3(a+b)≥32.
若a,b,c∈R+,abc=1.求证1a3(b+c)+1b3(c+a)+1c3(a+b)≥32.
设三元函数f(a,b,c)=1a