08/07/10 21:42:46
A435
s1=a+b+c,s2=ab+bc+ca,s3=abc
S1*S2/S3≧6{a/(s1-a)+b/(s1-b)+c/(s1-c)}
08/07/10 21:42:46
A435
s1=a+b+c,s2=ab+bc+ca,s3=abc
S1*S2/S3≧6{a/(s1-a)+b/(s1-b)+c/(s1-c)}
08/07/10 21:42:46
A435
s1=a+b+c,s2=ab+bc+ca,s3=abc
S1*S2/S3≧6{a/(s1-a)+b/(s1-b)+c/(s1-c)}