基于倍角三角形的一类一元高次方程求解

Find the Solution for One Kind of Higher Degree Univariate Polynomial Equation Based on the Multiple-angle Triangle

研究韦达构造倍角三角形的一般方法,总结出n倍角三角形正余弦与单倍角三角形正余弦之间的关系,并根据这种关系,给出一类特殊的一元高次方程的解法。

Based on the research of Francois Viete＇s general method for construction of multiple triangle, summarized the relationship of sine and cosine formula between multiple angle and single angle. At last set out the solution for one kind of higher degree univariate polynomial equation.