Question

How do I find the `n`th partial sum of an arithmetic sequence on a calculator?

Answer 1

explained below

Explanation:

For finding the nth term of an arithmetic sequence, the following formula is used

nth partial sum= `n/2[2a+ (n-1)d]`. where a is the first term, d is the common difference.

For any particular value of n, all the data is to be plugged in the formula and calculation can be done on calculator, if required, in normal manner.