What is the formula to find the sum of an arithmetic sequence

The video tutorial explains how to find the sum of a finite series by determining the number of terms, the first term, and the last term. It emphasizes the importance of knowing these values to calculate the sum, especially in arithmetic sequences. The tutorial also includes a brief example to illustrate the process.

What does it mean for a series to be finite, and how does it affect the calculation of the sum?

What is the significance of determining the NTH term in finding the sum of a series?

What information do you need to calculate the sum of a finite arithmetic series?

Explain the process of finding the sum of an arithmetic sequence with 10 terms.

How do you find the first term of an arithmetic sequence?