MathDB
Problems
Contests
National and Regional Contests
USA Contests
USA - College-Hosted Events
CMIMC Problems
2020 CMIMC
2020 CMIMC Team
8
2020 Team 8
2020 Team 8
Source:
February 2, 2020
team
2020
Problem Statement
Simplify
(
2020
1010
)
(
1010
1010
)
+
(
2019
1010
)
(
1011
1010
)
+
⋯
+
(
1011
1010
)
(
2019
1010
)
+
(
1010
1010
)
(
2020
1010
)
.
\dbinom{2020}{1010}\dbinom{1010}{1010}+\dbinom{2019}{1010}\dbinom{1011}{1010}+\cdots+\dbinom{1011}{1010}\dbinom{2019}{1010} + \dbinom{1010}{1010}\dbinom{2020}{1010}.
(
1010
2020
)
(
1010
1010
)
+
(
1010
2019
)
(
1010
1011
)
+
⋯
+
(
1010
1011
)
(
1010
2019
)
+
(
1010
1010
)
(
1010
2020
)
.
Back to Problems
View on AoPS