论文部分内容阅读
易错点扫描1.混淆等比数列与等差数列的性质.2.混淆等比数列的肯定与否定的证明.3.忽视“项”的位置.4.忽视利用等差、等比数列的特殊项或性质求参数.5.等比数列求和忽视“q=1”的讨论.6.利用数列通项an与前n项和Sn的关系求an时,忽视讨论n=1的情况.7.对不等式基本性质中的条件不清楚或没有准确理解,造成错解,如没有注意到很多条件是“正数不等式”等.
Error-prone scan 1. Confuse the properties of the equal-number array and the arithmetic progression. 2. Confuse the proof of the affirmation and negation of the equal-number sequence. 3. Ignore the position of the “item”. 4. Ignore the use of equal-difference, equal-ratio The special item or property of the series is used to find the parameters. 5. The discussion of the equalization of the number series ignores “q=1”. 6. The use of the series item an and the relationship between the first n items and Sn When seeking an, ignore the discussion n= Case 1: 7. The conditions in the basic properties of the inequality are either unclear or inaccurately understood, resulting in misunderstandings, such as not observing that many conditions are “positive inequalities” and so on.