I know it may not be relevant to cp but i see some editorials talk about this formula. And how can we generalize it for polynomial of nth degree.
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I know it may not be relevant to cp but i see some editorials talk about this formula. And how can we generalize it for polynomial of nth degree.
Название |
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https://math.stackexchange.com/questions/2951544/memorization-and-generalization-of-vietas-formulas
Basically, it manifests the relationship between the coefficients and roots of a polynomial. Consider a quadratic equation $$$ax^2 + bx + c$$$. Lets suppose that $$$\alpha$$$ and $$$\beta$$$ are the roots of this equation, then:
$$$\alpha + \beta$$$ = $$$-b / a$$$
$$$\alpha \beta$$$ = $$$c / a$$$
I am pretty sure that you are familiar with this relationship without knowing the fact that it is called the "Vieta's formula"