Sum Of First N Terms Of An Ap

1. The given arithmetic progression (A.P.) is:

34, 32, 30, . . .

2. The formula for the sum of the first terms of an A.P. is:

Where is the first term, is the common difference, and is the number of terms.

3. Finding the common difference:

The common difference is the difference between any two consecutive terms:

4. Finding the sum of the first 10 terms:

Substitute , , and into the sum formula: