论文部分内容阅读
一、三角不等式的证明三角不等式,如果对三角函数施以变量代换,就可以转化为代数不等式,因此证明代数不等式的所有方法都可用来证明三角不等式,但是三角函数又有其自身的性质和特点,这些性质和特点丰富了三角不等式的证明方法.由于代数不等式的内容安排在高二,因此这里我们只能介绍一些简中的能为同学所接受的方法. 1、用代数方法证明三角不等式
1. Trigonometric Inequality Proof of Trigonometric Inequality If a trigonometric function is subjected to variable substitution, it can be converted into an algebraic inequality. Therefore, all methods of algebraic inequalities can be proved to be able to prove triangular inequalities, but trigonometric functions have their own properties and The characteristics, these properties and characteristics enrich the proof method of triangular inequalities. Since the content of algebraic inequalities is arranged in high two, we can only introduce some simple methods that can be accepted by the students. 1. Use algebraic methods to prove the triangle inequality.