abc为正数,且满足a^2+b^2=c^2求证log2(1+(b+c)/a)+log2(1+(a-c)/b)=1
a,b,c均为正数,且2^a=log1/2 a ,(1/2)^b=log1/2 b ,(1/2)^c=log2 c ,则
[5分可能有追分]设a.b.c均为正数,且2^a=log1/2 (a),(1/2)^b,(1/2)^c=log2 (c)
设 均为正数,且2^a=log1/2 (a),(1/2)^b=log1/2(b),(1/2)^c=log2 (c),则a
a,b,c都是正数,2^a=log1/2(a),(1/2)^b=log1/2(b),(1/2)^c=log2(c),比较
实数abc,满足a>b>c,且a+b+c=1,a^2+b^2+c^2=1,求证a+b大于1小于4/3
已知abc为正数,且a+b+c=1,求证:(1-a)(1-b)(1-c)≥8abc
高二均值不等式,已知a,b,c都为正数,求证:(a+b+c)(1/(a+b)+1/(b+c)+1/(a+c))>=9/2
已知a+b+c=1且abc都为正数.求(a+1/a)2+(b+1/b)2+(c+1/c)2的最小值
设A.B.C均为正数,求证c/(a+b)+a/(b+c)+b/(c+a)>=3/2
a,b,c为互不相等的正数,且abc=1,求证:(1/a+1/b+1/c)>根号a+根号b+根号c
设实数ab满足log2(a-1)+log2(b-2)=2则a+b的最小值为
若a=log2 3.b=log3 2,c=log1/3 2.d=log2 1/3