1 senior high school series answering skills 1, difference (quotient) method
Answer skills 2, iterative multiplication
Answer skill 3. Arithmetic recursive formula
Answer skill 4. Proportional recurrence formula
Answer skills 5, reciprocal method
1 high school math series answering skills 1. There are only two types of mathematical series in senior high school, arithmetic progression and geometric progression. These two topics are relatively simple. Remember the formula, sum and term are relatively simple, and be familiar with the application of the formula.
Second, the types of questions are often not so simple and easy. The slightly more difficult problem is the combination of arithmetic and some geometric series. Some methods to be used here eliminate errors.
Answer skill 3. There are a variety of topics, and the frequent finale questions are all general items that have never been touched, and some even don't give connection items. For these two categories, I think we should accumulate the following methods.
Answer skill 4. Cauchy inequality can be transformed into geometric series summation, denominator scaling, mathematical induction and function.
Answer skill 5. For problems such as finding general terms, we can first find the law with the first generation, and then verify it with mathematical induction, or we can use accumulation method or accumulation method.
Answer skills 6. In short, every time you encounter a strange series problem, you should sum it up and get a solution to this kind of problem, or learn a scaling method from it, which is very helpful in the future.