MathDB
Problems
Contests
National and Regional Contests
USA Contests
USA - College-Hosted Events
Harvard-MIT Mathematics Tournament
2013 Harvard-MIT Mathematics Tournament
1
2013 Team #1: ab-Algebra Bash
2013 Team #1: ab-Algebra Bash
Source:
February 18, 2013
Problem Statement
Let
a
a
a
and
b
b
b
be real numbers such that
a
b
a
2
+
b
2
=
1
4
\frac {ab}{a^2 + b^2} = \frac {1}{4}
a
2
+
b
2
ab
=
4
1
. Find all possible values of
∣
a
2
−
b
2
∣
a
2
+
b
2
\frac {|a^2-b^2|}{a^2+b^2}
a
2
+
b
2
∣
a
2
−
b
2
∣
.
Back to Problems
View on AoPS