In any arithmetic progression

MATHEMATICS · Single correct · CBSE · Mathematics · Arithmetic Progressions · Arithmetic Progressions

Problem

In any arithmetic progression, the

n

th term

a_n

can be expressed using the partial sums

S_n

and

S_{n-1}

as (a)

a_n = S_n + S_{n-1}

(b)

a_n = S_n - S_{n-1}

(c)

a_n = \dfrac{S_n}{S_{n-1}}

(d)

a_n = S_{n-1} - S_{n-2}