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1题与解答题(人教A版普通高中课程标准实验教科书必修1第3.2.1节例1)假设你有一笔资金用于投资,现有三种投资方案供你选择,这三种方案的回报如下:方案一:每天回报40元;方案二:第一天回报10元,以后每天比前一天多回报10元;方案三:
1 question and answer questions (people teach A version of the general high school curriculum standard experimental textbook compulsory 1 Section 3.2.1 Example 1) Suppose you have a sum of money for investment, the existing three investment options for you to choose, the return of these three options As follows: Option One: 40 yuan a day return; Option Two: return the first day of 10 yuan, after each day more than the previous day return 10 yuan; Option Three: