Arithmetic Sequences

arithmetic sequence  An arithmetic sequence is a sequence in which the same number is added or subtracted from one term to the next Q  Explanation This formula tells us that, guven an arithmetic sequence, we can find the common difference d by subtracting any term from the next For example,

The sum of the arithmetic sequence formula says S_n = n2 S_n = n2 (2a + d), where a_1 a is the first term and d is the Arithmetic Sequences If the terms of a sequence differ by a constant, we say the sequence is arithmetic If the initial term of the sequence is a a

Formulas of Arithmetic Sequence · an = nth term that has to be found · a1 = 1st term in the sequence · n = Number of terms · d = Common difference · Sn = Sum of How do I find the sum of an arithmetic series? · To add up the numbers 1 to 10 · Write out the numbers 1 2 3 4 5 6 7 8 9 10 · Write them backwards 10 9 8 7 6