1.
The Main Difficulties of the Senior High School Students Learning Trigonometry and the Reason Behind This
高中生三角函数学习的主要困难及原因分析
2.
HP39gs Graphing Calculator Support for Researching into Trigonometric Function
HP39gs图形计算器支持下三角函数学习的探究
3.
A Research of Senior One Student's Trigonometric Functions Study
关于高一学生三角函数概念学习的研究
4.
the mathematics of triangles and trigonometric functions.
三角形与三角函数的数学。
5.
Exponential and trigonometric Functions: read Chapter 2 and do exercises.
指数和三角函数：阅读第二章以及做练习题。
6.
A Kind of Novikov Algebras and Triangle Functions;
一类Novikov代数与三角函数
7.
Plane Trigonometry in the US and Chinese Textbooks: A Comparative Study;
中美高中数学教材中三角函数内容的比较研究
8.
The trigonometric functions are defined for right triangles.
三角函数是对直角三角形定义的。
9.
trigonal hybrid orbital
正三角形杂化轨函数
10.
The branch of mathematics that deals with the relationships between the sides and the angles of triangles and the calculations based on them, particularly the trigonometric functions.
三角学数学的分支研究三角形边、角关系以及在此基础上的计算，尤其是三角函数
11.
Complex Analytic Function Utilized in Sum Function Evaluation of Trigonometric Progression;
利用复变解析函数求三角级数的和函数
12.
The trigonometric terms should be changed by the substitution of the equations involving the double angles.
用倍角公式代换三角函数项。
13.
The deformation and applications of sin~2α+cos~2α=1;
同角三角函数平方关系的变形与应用
14.
Study on Trigonometric Function Teaching of Facing Vocational Technical Secondary School Students
基于工科中等职业学校学生的三角函数教学研究
15.
The Old and New Version of the Two High School Mathematics Textbooks Trigonometric Function of the Comparative Study;
高中数学新旧两版教科书三角函数部分的对比研究
16.
On the Energy Function of Chaotic Neural Networks with Trigonometric Function Self-feedback
三角函数自反馈混沌神经网络能量函数研究
17.
Some high school students always are perplexed and at their wits' end when they do some exercises about the continue product of same kind trigonometric functions.
本文主要讲述三倍角公式在高中段数学教学中出现的一些同名三角函数连乘积计算中的应用。
18.
Study of Adding Triangle Function in Foxbase;
为数据库Foxbase添加三角函数