百度试题 结果1 题目The roots of the equation x − 2x − 2 = 0 are A: not real numbers B: real, rational, unequal C: real, rational, equal D: real, irrational, unequal 相关知识点: 试题来源: 解析 D real, irrational, unequal 反馈 收藏 ...
What is the sum of the roots of(x−1)(x 2)(x−3)×⋯×(x 98)(x−99)(x 100)=0( ). A. −50 B
View Solution Ifα,βare the roots ofx2−3x+a=0,a∈Rand<1<β, then find the values of a View Solution Free Ncert Solutions English Medium NCERT Solutions NCERT Solutions for Class 12 English Medium NCERT Solutions for Class 11 English Medium ...
2.2. Microbial Genera Identified in the Microbiomes of Soybean Nodules A total of 49 different genera were identified in soybean nodules (Figure 2). Their taxonomies are shown in Figure 3, and their percentages are shown in Supplementary Table S3. Of the genera identified, 23 were present in ...
For example, p = [3 2 -2]represents the polynomial 3x^2+2x−2. 根函数解决了形式为 的多项式方程. 多项式方程包含具有非负指数的单个变量。 Roots of Quadratic Polynomial Solve the equation . Create a vector to represent the polynomial, then find the roots. ...
相关知识点: 试题来源: 解析 Cx^2-98x-99=(x-99)(x+1)=0, so x=99 or -1, and 99-1=98.x^2-9x-99=0的两根之和是多少( ).A.-99B.-98C.98C.99解析:x^2-98x-99=(x-99)(x+1)=0,所以x=99或-1,即99-1=98.故选C. 反馈 收藏 ...
A unique approach has been developed to study patterns in ragas of Carnatic Classical music based on artificial neural networks. Ragas in Carnatic music wh... PK Srimani,YG Parimala - American Institute of Physics 被引量: 1发表: 2011年 Stigmas of the Tamil Stage: An Ethnography of Special ...
In the development of the old ideas of Stueckelberg–Wheeler–Feynman on the 'one-electron Universe', we study the purely algebraic dynamics of the ensemble of (two kinds of) identical point-like particles. These are represented by the (real and complex conjugate) roots of a generic polynomial...
In mathematics, a square root function is defined as a one-to-one function that takes a positive number as an input and returns the square root of the given input number. f(x) = √x For example, if x=4, then the function returns the output value as 2. ...
相关知识点: 试题来源: 解析 x^2-13x+4=0 If the roots are a2, B2 then Sum of roots = a2+ B2= (a + B)2-2af =3^2-2(-2)=130 P roductofroots=α^2β^2=αβ^2=(-2)^2=4 Therefore equation is x^2-13x+4=0 反馈 收藏 ...