a^2=b^2=1/2,c^2=3/2
最小的话,a,b同号二者和c异号即可.比如a=b=1/√2,c=-√(3/2),最小值=1/2-√3.
已知a2+b2=1,b2+c2=2,c2+a2=2,则ab+bc+ac的最小值为多少?
已知a2+b2=1,b2+c2=2,c2+a2=2,则ab+bc+ac的最小值为多少?
数学人气:390 ℃时间:2019-11-11 12:46:02
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