Identify the infinite geometric series that is convergent.

MATHEMATICS · Single correct · CBSE · Mathematics · Sequences and Series · Sequences and Series

Problem

Identify the infinite geometric series that is convergent. (a)

4-5+\dfrac{25}{4}-\dfrac{125}{8}+\cdots

(b)

5-10+20-40+\cdots

(c)

7+\dfrac{7}{2}+\dfrac{7}{4}+\dfrac{7}{8}+\cdots

(d)

9+12+16+\dfrac{64}{3}+\cdots