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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
Area of a Circle Illustrated
Parallelogram Anatomy
bewijs stelling van Pythagoras
Building Parallelograms with Set Areas
Superellipse
Découvrir des ressources
Symétrie Centrale
Two point perspective
final cuboid
Multiplying two matrices
Découvrir des Thèmes
Soustraction
Entiers Naturels
Similitude
Nombres Rationnels
Valeur Attendue