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Problem 6_2 (A)
Auteur :
angela
6_2
Show that roots of the cubic equation
are in arithmetic progression if and only if
.
Solution:
Suppose roots are
,
, and
with
. Then,
.
and
. It follows that
and
.
Nouvelles ressources
Parabolas, Lines and Nomograms
Absolute Value Functions f(x)=a |x - h| + k
Pythagorean Template: Integer Legs
Pythagorean Theorem: Extension Exercises
Function art 3D - waiting shed (v2)
Découvrir des ressources
Regular Polyhedra - Two Projections
Négyzet
Investigation 6: A Circumscribed Circle
Wumps Hats
Constructions (Compass & Straightedge)
Découvrir des Thèmes
Opérations Arithmétiques
Allure de Courbe
Exposant
Loi de Poisson
Cercle Inscrit ou Circonscrit