摘要
高中数学中,解三角形主要是综合应用三角函数及三角恒等变换的相关公式、正弦定理、余弦定理、两边夹角面积公式等知识。文章通过结合平面向量、圆、平行四边形、线性规划、建立直角坐标系等知识,给出几种不常规的解三角形的方法,以期帮助同学们提高解题效率。
In high school mathematics, the solution of triangle is mainly concerned with the trigonometric function formula and ？trigonometric identity transformation, sine theorem, cosine theorem, and the formula of the angle area between two sides. Through the combination of plane vector, circle, parallelogram, linear programming, the establishment of Cartesian coordinate system and other knowledge, this paper gives several unconventional solutions in order to help students improve the efficiency of solving relevant problems.
出处
《桂林师范高等专科学校学报》
2018年第1期147-149,共3页
Journal of Guilin Normal College
关键词
高中数学
三角形
解题思路
不常规方法
high- school mathematics
solving triangles
unconventional problems
solving ideas
