在处理数列题时,最基本的方法是运用定义及公式来解决,但是有时恰当地使用等差、等比数列的性质能给人以出奇制胜、耳目一新的感觉;同时在解决数列题时要注意加强与函数的联系,通过相应的函数及其图象的特征变化地、直观地去认识数列的性质． When dealing with a series of questions, the most basic method is to use the definitions and formulas to solve, but sometimes the proper use of the characteristics of equal and odd series can give people a sense of surprise and refreshing; at the same time, they must pay attention to strengthening the number of questions The connection with the function, through the corresponding function and its image features, intuitively to understand the nature of the sequence.