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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
.
Nieuw didactisch materiaal
Sum of Squares: Proof without Words
Limaçons
רישום חופשי
Graph of Slopes of Tangent Lines
Domain of f(x,y)
Ontdek materiaal
Linear Laws 1
forum
Rotation: formula
Horizontal Translations of Quadratic Functions
Two Sides and an Angle Not Between Them
Animation flower IV
Ontdek onderwerpen
Termen
Veelhoeken
Deling
Schijfdiagram of cirkeldiagram
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