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三角函数是高中数学的重要内容,也是江苏高考考查的重点、热点.在近5年的江苏高考中,单独考查三角函数的题目分值都在20分左右,主要是以考查三角函数的求值、化简与三角函数的图象和性质.题型一般为一个填空题,一个解答题.其中解答题一般在前两个,而填空题则有往后的趋势,逐渐向压轴填空题靠近.学生在三角函数的学习过程中,普遍存在会而不对、对而不全的问题.造成失误的主要原因是由于忽视角的范围,不善于挖掘隐含条
Trigonometric function is an important part of high school mathematics, but also the focus of the Jiangsu college entrance examination examinations, in the past five years, Jiangsu college entrance examination, the trigonometric functions alone test topic scores are around 20 points, mainly to test trigonometric function evaluation , Simplification and trigonometric functions of the image and the nature of the problem is generally a fill in the blank, a solution to the question, which answer the question generally in the first two, while the fill-in-the-title has the trend of the future, and gradually to the finale fill in the blank near. Students in the trigonometric function of the learning process, there is a common problem, not right, the main reason for the error is due to neglect the scope of the angle, not good at mining the implied