Elementary combinatorics: Arithmetic and geometric sequences
Arithmetic sequences
Write the following sum belonging to an arithmetic sequence \[7+9+11+\cdots + 31\] in sigma notation with summation index \(k\) and calculate it
| \(7+9+11+\cdots + 29+ 31 = {}\) |
| \(7+9+11+\cdots + 29+31 = {}\) |
Unlock full access
