a+b=98,c-b=27,a-c=21
(a-b-c)(b+c-a)(c-a+b)=
a>b>c,a+b+c=0,求证c/(a-c)>c/(b-c)
行列式证明|b+c c+a a+b| | a b c||a+b b+c c+a| = 2 |c a b||c+a a+b
已知(b+c)/(a)=(c+a)/(b)=(a+b)/(c) 求(a+b)/(c)
证明 +(a-b)(b-c)(c-a)/(a+b)(b+c)(c+a)=0
(a-b)b+c(b-a)=c(c-a)+b(a-c)?
a+b+c=0,abc求a(b+c)+b(a+c)+c(a+b)
[(a-b)(b-c)(c-a)]÷[(a-c)(c-b)(b-a)]=
已知a+b+c=0求证:(a-b/c+b-c/a+c-a/b)(c/a-b+a/b-c+b/c-a)=9
已知:(a+b-c)/c=(b+c-a)/a=(c+a-b)/b,a+b+c≠0.求证::(a+b)(b+c)(c+a)
C语言中,max=(a>((b>c)?b:c)?a:(b>c:b:c));
max=a>b?(a>c?a:c):(b>c?b:c); mid=a>b?(ab?(a>c?a:c):(b>c?b:c)