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三角函数一直是高考考查的重点和热点,其考查形式灵活多变,除选择题、填空题外,六个解答题中必有一道三角函数题,属中档题。在解答题中一般是三角恒等变换、函数y=Asin(ωx+φ)的图像与性质和解三角形等知识进行综合考查,准确地得解这类题,无疑是高考取胜的基础。综观近几年全国各地高考试题,三角函数题常与平面向量、数列、平面几何、解析几何、不等式等内容结合,呈现出新的命题趋势,令人耳目一新,意犹未尽。
Trigonometric function has always been the focus of college entrance examination examinations and hot spots, the test form flexible, in addition to multiple-choice questions, fill in the blank question, the six answer questions must have a trigonometric function problem, is a mid-range title. In the answer questions are generally triangular trigonometric transformation, the function y = Asin (ωx + φ) of the image and nature of reconciliation triangles and other knowledge to conduct a comprehensive examination, accurate understanding of these questions, is undoubtedly the basis for the college entrance examination to win. Looking at the entrance exam questions throughout the country in recent years, trigonometric function problems often combine with the content of plane vectors, series, plane geometry, analytic geometry, inequality, etc., presenting a new trend of propositions.