MathDB
Problems
Contests
National and Regional Contests
Vietnam Contests
Hanoi Open Mathematics Competition
2007 Hanoi Open Mathematics Competitions
12
12
Part of
2007 Hanoi Open Mathematics Competitions
Problems
(2)
Calculate the sum
Source:
1/24/2016
Calculate the sum
5
2.7
+
5
7.12
+
.
.
.
+
5
2002.2007
\frac{5}{2.7}+\frac{5}{7.12}+...+\frac{5}{2002.2007}
2.7
5
+
7.12
5
+
...
+
2002.2007
5
HOMC (Vietnam)
Source:
1/28/2016
Calculate the sum
1
2.7.12
+
1
7.12.17
+
.
.
.
+
1
1997.2002.2007
\frac{1}{2.7.12} + \frac{1}{7.12.17} + ... + \frac{1}{1997.2002.2007}
2.7.12
1
+
7.12.17
1
+
...
+
1997.2002.2007
1
.
calculus