How Do You Find The Sum Of An Arithmetic Sequence?
An arithmetic sequence is a sequence which increases by the addition or subtraction of a fixed value. You may, at some point, need to find out the total value of a given sequence. This article will show you how. • Identify the first term in the sequence, call this number a. • Identify the common difference by subtracting the first term from the second term. Call this number d. • Identify the number of terms in the sequence you are summing. Call this number n. Insert these values into the equation: S = 0.5n(2a+(n-1)d) to calculate the sum, S, of the sequence.
