Sign in
Search
GeoGebra
Home
Resources
Profile
Classroom
App Downloads
Problem 6_2 (A)
Author:
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
.
New Resources
Average Value
Untitled
Area Between Two Curves
兩位數的位值
အခြေခံ data အခေါ်အဝေါ်များ
Discover Resources
CONSTRUCTION vs. DRAWING
p887
Sasha Rieser angle bisectors in a triangle project
แผนภูมิวงกลม
AM 2010 P2 Q2
Discover Topics
Means
Triangles
Similar Triangles
Trigonometry
Binomial Distribution