问题 单项选择题

In the expression above, a, b, and c are different numbers and each is one of the numbers 2, 3, or 5. What is the least possible value of the expression ?()

A.A

B.B

C.C

D.D

E.E

答案

参考答案:B

解析:

先把繁分化简:

[*]

要使该表达式值最小,则bc取最大值15,a取最小值2。

选择题
单项选择题