论文部分内容阅读
在高考中数列部分的知识既是重点,又是难点,不论是选择题正是填空题,对基础知识的考查,还是压轴题中与其他知识的综合,抓住数列的通项公式通常是解题的关键。一、定义法直接利用等差数列或等比数列的定义求通项的方法叫定义法。这种方法适应于已知数列类型的题目或由递推公式变形符合等差数列或等比数列的定义。
Knowledge in the college entrance examination part of the column is not only the focus, but also difficult, whether the multiple-choice questions is fill in the blank, the basic knowledge of the test, or finale and other knowledge synthesis, seize the sequence of formulas is usually the solution key. First, the definition of law Direct use of arithmetic progression or geometric series is the definition of the definition of the method is called the definition of law. This method adapts to the definition of a sequence of known series types or deformations of recurrence formulas that conform to arithmetic progression or geometric progression.