韦达定理
- 网络Vieta theorem;Weda's Theorem
韦达定理-
借助牛顿公式和韦达定理，采用迭代的方法求解类似于自然数等幂和的问题。
With the help of Newton formula and Vieta theorem , iterative method was used to solve problems of power sum .
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本文主要是构作一些特殊的代数方程，利用韦达定理及单位根性质导出一些三角恒等式。
This peper , intends to make some special algebraic equations and introduces some trigonometric identities by using the vieta theorem and the property of unit root .
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通过利用韦达定理对二阶常系数非齐次线性微分方程进行降阶，导出了简便、统一的通解公式。
By using the theory of Veda , the run size of second order non-homogeneous linear differential equation with constant coefficients can be lowered and a forthright and integrated formula can be deduced .