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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
.
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انقد ص 15
Untitled
Découvrir des Thèmes
Triangles Rectangles
Soustraction
Triangles Equilatéraux
Parallélogramme
Arithmétique