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我们认为,今年上海市普通高等学校招生统一考试的数学试题,能够根据《教学大纲》的要求,抓住基础知识和基本技能,这是高校招生命题的改革之一。拿理工农医类试卷第六题“解三角方程cos~2x+cos~23x=1”与去年的对数方程相比较,可见这道三角方程明显地较为基本,只要对原方程稍加变形,就可以变为与课本上的练习、习题相同的基本题。如利用半角公式降次后,即变为方程cos2x+cos6x=0,与重点中学课本第二册第32页练习中的第7题(即通用教材第一册习题十第18题)cos3x+cos2x
We believe that this year’s mathematics questions for the Shanghai Unified Higher Education Admissions Examination will be able to grasp basic knowledge and basic skills in accordance with the requirements of the “Syllabus”. This is one of the reforms in the college’s recruitment of life questions. Take the sixth issue of the polytechnic agro-medical examination paper “Resolve the trigonometric equation cos ~ 2x + cos ~ 23x = 1” compared with the logarithmic equation of last year, it can be seen that this trigonometric equation is obviously more basic, as long as the original equation is slightly deformed, It can be the same basic question as exercises and exercises in textbooks. Such as the use of half-angle formula descending, it becomes the equation cos2x + cos6x = 0, and key middle school textbooks in the second volume of the 32nd page of exercises in the 7th problem (that is, general textbooks in the first volume exercises ten 18 questions) cos3x + cos2x