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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
Graph of Slopes of Tangent Lines
The Geometry of the Coefficients of a Quadratic Function
Fractal Tétraèdre. Dilatation -1/2 centre triangles
רישום חופשי
Limaçons
Découvrir des ressources
costruzione simbolo dell'euro
Linear Nonhomogeneous 1st Order DDS Checker
Untitled
PS 3
Octagon - Baleigh
Découvrir des Thèmes
Multiplication
Quadrilatère Quelconque
Volume
Logarithme
Calcul Intégral