论文部分内容阅读
三角函数部分主要内容有:(1)角的概念与度量;(2)任意角三角函数的定义;(3)同角三角函数的基本关系式;(4)诱导公式;(5)和、差、倍、半角的三角函数公式;(6)三角函数的图象与性质;(7)已知三角函数值求角;(8)正弦定理、余弦定理及其应用(主要是解斜三角形)。
The main contents of the trigonometric function are: (1) the concept and measurement of angle; (2) the definition of arbitrary trigonometrical function; (3) the basic relation of trigonometric function; (4) the induction formula; (6) the image and nature of the trigonometric function; (7) the known value of the trigonometric function; and (8) the sine, cosine and their applications (mainly oblique triangles).