Distribution law of mathematics scores in Sichuan college entrance examination
Find your own test questions to study. Anyway, the distribution of scores is similar every year, and the selection and filling is more complicated. Except for the last two, they are not difficult. Pay attention to the method. For example, the speculative point: it is more useful to substitute the answer: the tree combination is like a big question, and 17. 18. 19 is a triangle or a space vector or a probability. This is relatively simple. Generally speaking, there is analytic geometry: ellipse, hyperbola, or circle. And sequences. Usually 20 is geometry. 2 1 or 22 is a series. There is also a function about series, the limit of series and the uncertainty of reciprocal. I can't ask the next two or three questions! You have the spare capacity to study it. Good luck in the college entrance examination.