The sum of the first n terms is
- The sum of the first n terms is 4n 2
- Sum of the first n terms of an arithmetic progression
- If the sum of the first n terms is n2
- The sum of first n terms is 5n2 3n
- The sum of first n terms is 3n2 2 5n 2
- The sum of first n terms is 3n2 6n
- The sum of first n terms is 3n2 2 13n 2
- The sum of the first n terms of ap is
- The sum of the first n terms of an ap is 5n2 3n
- The sum of the first n terms of an ap is 3n2 4n
- The sum of the first n terms of an ap is 4n n2
- In an ap the sum of the first n terms is 6n n2
- In an ap the sum of the first n terms is 3n 2 2
- The sum of the first n terms of a series is 5n 2 2n
- The sum of the first n terms of an ap is 5n n2