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三角函数是中学数学的重要内容,也是高考考查的着力点,三角函数与代数、几何等知识渗透在一起,以其奠基性、工具性、综合性等特征而成为高中数学和高考的重点内容.从近几年的高考试卷看,对本章的考查主要是三角函数的图象和性质,尤其是图象变换、周期、最值,题型多为选择题、填空题和中低档的解答题.
Trigonometric function is an important part of high school mathematics. It is also the focus of college entrance examination. Triangular function and algebra, geometry and other knowledge infiltrated together, with its foundation, instrumental, comprehensive features such as high school mathematics and college entrance examination become the key content. Examination papers in recent years from the college entrance examination, this chapter examines the trigonometric function of the image and nature, especially the image transformation, cycle, most value, multiple choice questions, fill in the blank questions and middle and low answer questions.