These sites allow users to input a Math problem and receive step-by-step instructions on How to find the sum of a sequence.
The formula that serves us to calculate the value of the sum of the sum of the terms of an arithmetic progression is equal: To the sum of the first and last terms,
Plot the formula for finding the sum of an arithmetic sequence. The formula is Sn=n(a1+an2){displaystyle S_{n}=n({frac {a_{1}+a_{n}}
Note how the formula states that the sum of an arithmetic sequence is equal to the average between the first and last term, multiplied by the number of