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纵观2015年高考数学大纲卷与课标卷、文科与理科卷,三角函数都是重要的考查内容,只要基础扎实,这一部分的得分率还是较高的.从命题特点和知识类型来看,无论是大纲卷还是课标卷,都集中考查了主干知识与重点方法.利用三角公式进行三角恒等变换,也是考查的重点内容之一,主要考查的公式有:诱导公式、同角关系、两角和与差的三角函数、二倍角公式、辅助角公式、正余弦定理.对于这部分题目笔者有些许思考,记
Throughout the 2015 college entrance examination math syllabus and curriculum standard, liberal arts and science volumes, trigonometric functions are important test content, as long as the foundation is solid, this part of the scoring rate is still higher.From the propositional characteristics and types of knowledge point of view, Whether it is the outline of the volume or the scale of the book, are focused on the main knowledge and the key methods.Using trigonometric formula for triangular equal transformation, is also one of the key content of the test, the main test of the formula are: induction formula, with the angle relationship, two Angle and sum of difference trigonometric function, double angle formula, auxiliary angle formula, sine cosine theorem. For this part of the author I have a little thought, remember