SECOND DEGRE - Plus De Bonnes Notes

Quadratics - The Discriminant 1 Polynomial Form fx()=+ax2 bx+c Quadratic Formula 2 4 2 bbac x a −± − = Value of Discriminant ba2 −4 c Roots (Zeros) fx()=+x2 4x−12 Factored Form Table

DISCRIMINANT FUNCTION ANALYSIS (DA)

The discriminant function coefficients denote the unique contribution of each variable to the discriminant function, while the structure coefficients denote the simple correlations between the variables and the functions Summary To summarize, when interpreting multiple discriminant functions, which arise

ALGEBRA II Discriminant Page 1 - BowerPower

The discriminant is the expression under the radical sign in the quadratic formula ????????2+ ????????+ ????= 0 The discriminant is ????2−4???????? What does the value of the discriminant tell us? When the discriminant is positive If ????2−4????????> 0 the equation has 2 real solutions When the discriminant is zero

Understanding the Discriminant Date Period

Find the value of the discriminant of each quadratic equation 1) 6 p2 − 2p − 3 = 0 76 2) −2x2 − x − 1 = 0 −7 3) −4m2 − 4m + 5 = 0 96 4) 5b2 + b − 2 = 0 41 5) r2 + 5r + 2 = 0 17 6) 2p2 + 5p − 4 = 0 57 Find the discriminant of each quadratic equation then state the numberof real and imaginary solutions 7) 9n2 − 3n − 8

Linear Discriminant Functions and Decisions Surfaces

• We define c linear discriminant functions • and assign x to ωi if gi(x) > gj(x) ∀j ≠i; in case of ties, the classification is undefined • In this case, the classifier is a “linear machine” • A linear machine divides the feature space into c decision regions, with gi(x) being the largest discriminant if x is in the region Ri

Corrigé du devoir à la maison n°1 - AlloSchool

Le numérateur a un discriminant négatif, il est de signe constant, celui de 9, c’est à dire strictement positif Le signe du quotient est celui de 3x −5 d’où : l’ensemble des solutions est S = ò 5 3;+∞ ï Si vous résolvez l’équation en multipliant les deux membres de l’inégalité par 3x−5: attention au signe

TD n 15: Polynômes

Le polynôme X2+2X+3est de discriminant négatif, il est donc irréductible sur R[X], on a trouvé la factorisation du polynôme en facteurs irréductibles sur R[X]