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近年高考中的数列应用问题,有不少与递归数列有关,本文列举数例,介绍相应的方法和技巧. 1.一阶递归数列例1 某城市01年末汽车保有量为30万辆,预计此后每年报废上一年末汽车保有量的6%,并且每年新增汽车数量相同,为保护城市环境,要求该城市汽车保有量不超过60万辆,那么每年新增汽车数量不应超过多少辆? (02年高考)
In recent years, there have been many issues relating to serial applications in the college entrance examination. This article lists several examples and introduces the corresponding methods and techniques. 1. First-order recursive sequences Example 1 The number of cars in a city by the end of 2001 is 300,000. It is expected that Retiring each year at the end of the previous year, 6% of the vehicle ownership is maintained, and the number of newly added automobiles is the same each year. To protect the urban environment, the number of cars in the city is required to be no more than 600,000 vehicles. How many cars per year should not exceed? 02 college entrance examination