【简答题】he company that you manage has invested $5 million in developing a new product, but the development is not quite finished. At a recent meeting, your salespeople report that the introduction of competi...
【简答题】[必做题] 已知整数n≥4,集合M={1,2,3,…n}的所有3个元素的子集记为A 1 ,A 2 ,…,A C . (1)当n=5时,求集合A 1 ,A 2 ,…,A C 中所有元素之和; (2)设m i 为A i 中的最小元素,设p n =m 1 +m 2 +…+m c ,试求p n (用n表示).
【简答题】The company that you manage has invested $5 million in developing a new product, but the development is not quite finished. At a recent meeting, your salespeople report that the introduction of compet...