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数列作为一种特殊的函数,是中学数学的重要内容之一,是考查能力、素质的重要知识载体,因此数列一直在高考命题中备受青睐。由于数列公式的使用的灵活性,考生找不到正确又快捷的解题思路,不能正确而快速解答,导致丢分。为此,拙文以2013年高考数列题为例,对简化数列运算的有效途径进行归类总结。途径1巧妙利用等差、等比数列的定义在数列中,等差数列、等比数列、通项公式、前n项和
As a special function, the sequence is one of the important contents of mathematics in high school. It is an important carrier of knowledge of ability and quality. Therefore, the series has always been favored in the college entrance examination proposition. Due to the flexibility of using the formula, candidates can not find a correct and efficient solution to the problem, can not correctly and quickly answer, leading to drop points. To this end, I clumsy to take the 2013 college entrance examination series of questions as an example, to simplify the effective calculation of the operation of the line classified. Path 1 clever use of equal differences, the definition of geometric series in the series, arithmetic series, geometric series, the general formula, the first n and