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Contests
National and Regional Contests
Spain Contests
Spain Mathematical Olympiad
1989 Spain Mathematical Olympiad
3
spain 1989
spain 1989
Source:
October 11, 2012
inequalities
geometry
3D geometry
induction
limit
Problem Statement
Prove
1
10
2
<
1
2
3
4
5
6
.
.
.
99
100
<
1
10
\frac{1}{10\sqrt2}<\frac{1}{2}\frac{3}{4}\frac{5}{6}...\frac{99}{100}<\frac{1}{10}
10
2
1
<
2
1
4
3
6
5
...
100
99
<
10
1
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