Q22:

For any integer k greater than 1, the symbol k^* denotes the product of all the fractions of the form 1/t, where t is an integer between 1 and k, inclusive.  What is the value of 5^*/4^*?

A.     5

B.     5/4

C.     4/5

D.     1/4

E.      1/5

为什么不是d呢？

答案是E吗？

I think you should pay more attention to  the word  "inclusive".

谢谢你的回答。

可是为什么不可以5*/4*＝1×1/2×1/3×1/4  /  1×1/2×1*3＝1/4  ？？

这是也满足1<=t<=k??

E?