Prep 1- DS- 126

mauricew

126. 

S is a finite set of numbers.  Does S contain more negative numbers than positive numbers?

 

(1)  The product of all the numbers in S is -1,200.

 

(2)  There are 6 numbers in S . (E) 可以帮忙解答这一题吗

喝咖啡的狼

这 6 个数可以 1正5负， 也可以 1负5正 。。。。