Arithmetic sequences Year 11 Maths

Arithmetic and Geometric Sequences arithmetic sequence

If the sequence has a common difference, it is arithmetic; if it has a common ratio, it is geometric We can therefore determine whether a sequence is

arithmetic sequence 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 An arithmetic sequence is a sequence in which the same number is added or subtracted from one term to the next Q  A sequence such as 1, 5, 9, 13, 17 or 12, 7, 2, –3, –8, –13, –18 which has a constant difference between terms The first term is a1, the common difference is d

กระปุกออมสิน 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