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该部分内容是高中代数的重点之一,也是高考的重点.在高考试题中,经常有考查数列的选择题、填空题,在解答题中有时是中等难度的题目,有时是难度较大的综合题,经常围绕数列的问题,创设新的问题情境,更有效地测试考生的能力,尤其是创造思维能力.在复习过程中,要注意以下问题:1.深刻理解、灵活运用数列、等差数列、等比数列的基础知识去解决问题(1)在运用等差(等比)数列的通项公式α_n 和前 n项和公式 S_n 解决问题时,经常涉及五个基本量α_1、d(g)、n,α_n、S_n“知三求二”的运算.
This part is one of the focuses of high school algebra, and it is also the focus of the college entrance examination. In the high test questions, we often examine the multiple choice questions and fill in the blank questions. In the answer questions, it is sometimes a moderately difficult one, sometimes it is a more difficult synthesis. Questions, often surrounding a series of questions, creating new problem situations, and more effectively test candidates’ abilities, especially the ability to create thinking. In the review process, we should pay attention to the following questions: 1. Intensive understanding, flexible use of series, arithmetic series , Equals the basic knowledge of the number sequence to solve the problem (1) When solving the problem by using the general term α_n of the arithmetic difference (equal ratio) series and the former n term and the formula S_n, five basic quantities α_1, d(g) are often involved. n, α_n, S_n “know three seek two” operation.