At our school,we have many e***,like Art Festival and chorus competition.******这个其实是下滑线.

题目

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

答案

（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.