At our school,we have many e***,like Art Festival and chorus competition.******这个其实是下滑线.还有一题关于数学的(a-b)(b-c)(c-a) a=0.5 b=1/3 c=1/6 /是分数线

问题描述:

At our school,we have many e***,like Art Festival and chorus competition.******这个其实是下滑线.
还有一题关于数学的
(a-b)(b-c)(c-a) a=0.5 b=1/3 c=1/6 /是分数线

(a-b)(b-c)(c-a) a=0.5 b=1/3 c=1/6 a=0.5 b=1/3 c=1/6 所以,(a-b)=1/6,(b-c)=1/6,(c-a) =-2/6=-1/3,(a-b)(b-c)(c-a)=(1/6)(1/6)(-1/3)=1/36(-1/3)=-1/108.答案为负的一百零八分之一.