What are the circle/coordinate system and parameter equations/inequalities of common problems in liberal arts mathematics?
Generally, questions 22 to 24 of liberal arts mathematics in the national volume will be selected from circle/coordinate system and parametric equation/inequality. Parametric equation is a problem that everyone chooses to do the most. Parameter equation mainly examines the calculation method of trajectory equation, the maximum value of triangle substitution, the transformation of polar coordinate equation and rectangular coordinate equation, etc. This problem is easier to do.
function
The national volume of liberal arts mathematics 2 1 question will be a function question in the national examination. The knowledge of trigonometric function in college entrance examination mainly examines the knowledge of trigonometric function and trigonometric solution. The main knowledge point is the concept of trigonometric function. Constant deformation, same angular relationship, etc. Trigonometric functions can also combine vector knowledge, sine theorem and cosine theorem.
Analytic geometry
The 20 th question of liberal arts mathematics in the general national examination will analyze geometry questions. Analytic geometry is not a difficult topic, as long as everyone works hard at ordinary times, these topics are relatively simple. So don't be afraid of difficulties, thinking that these are the last two big questions, you will find it difficult. In fact, if you do it seriously, there is still hope to do it right. To say the least, even if you really can't, you can still go up some steps, and the first one or two questions are still no problem.
solid geometry
The general national examination of liberal arts mathematics 19 will be a solid geometry problem. Example geometry is not difficult, but everyone must dare to write, and don't give up this problem without thinking. As long as you follow the conventional method, then analyze step by step and write the steps while analyzing, the result will naturally come out. If you have no idea, you can try two or more ways to do it.
Probability; possibility
Probability questions in the national examination of liberal arts mathematics 18. The probability problem is relatively simple, and it is also a problem that must be scored. This problem mainly includes frequency distribution table, frequency distribution histogram, solution of regression equation, probability calculation, calculation of correlation coefficient and so on. Mainly about the ability to draw and read maps.
Trigonometric function/sequence
Generally speaking, the 17 question of liberal arts mathematics in the national examination will be a trigonometric function or a series question. Order is the simplest topic, you may find it difficult, but you can put it in the position of the first big topic, that is to say, don't lose points. We can summarize, analyze and classify the series of questions and find the rules. Do more questions and you will naturally have ideas.
How to improve the performance of liberal arts mathematics, a major feature of liberal arts mathematics is that you can replace endless exercises with effective summaries. Summing up is not blindly copying formulas and concepts, but summing up problem-solving skills for yourself with your own language and experience, which is what I call "translation". In fact, in senior three, I spent more time summing up than doing problems.
Carelessness is a big obstacle that is difficult to bypass in liberal arts mathematics learning. But carelessness is only a symptom, and it is still not skilled enough to trace the source. There is no need to spend extra energy on the adjustment of mentality. The measure I take is to find out the exam questions in the past three years one month before the exam, do them carefully within the specified time, and write the answers on paper to reduce my fear of the college entrance examination and enhance my self-confidence.
I recommend: what are the key questions in the math review of the college entrance examination?
The first task of "being lazy" is to reduce the load of review. The biggest load of mathematics learning is endless sea of questions. At the beginning of school, I sorted out a general conceptual framework, highlighting the key points and difficulties. In this way, when everyone was immersed in the first round of review, I jumped out of the sea early. Saving time is only a means, and spending energy on "fine questions" is the purpose. Experience shows that the selection of excellent titles has laid a solid foundation for the improvement of performance in a short time.