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1考点综述数列作为定义在正整数集或其有限子集上的一种特殊的函数,是反映自然规律的一种基本数学模型。等差数列和等比数列作为两种特殊的数列,在现实生产和日常生活中有着广泛的应用。数列是高中数学的重要内容和主干知识,等差数列和等比数列是数列中的两大核心内容,是每年高考必考的重点内容,更是高考数学中的“几大难点”之一,因而也是区分学生能力水平的极好素材,历年来备受关注。
A test center summary As a series of defined in the positive integer set or its finite subset of a special function is a reflection of the law of nature of a basic mathematical model. Equal-difference series and geometric series as two special series, in the actual production and daily life has a wide range of applications. The number sequence is an important part of high school mathematics and knowledge of the backbone. The arithmetic progression and the geometric progression are the two core contents of the sequence. They are the key elements of the annual test for the college entrance examination. They are also some of the major difficulties in college entrance examination mathematics. Therefore, it is also an excellent material for distinguishing the level of students’ ability and has drawn much attention over the years.