Which one of the following infinite series is convergent?

MATHEMATICS · Single correct · AP · Calculus BC · Infinite Sequences and Series · Infinite Sequences and Series

Problem

Which one of the following infinite series is convergent? (a)

1+\dfrac{1}{2}+\dfrac{1}{3}+\dfrac{1}{4}+\cdots

(b)

3+1.2+0.48+\cdots

(c)

1-1+1-1+\cdots

(d)

1+1.05+1.1025+\cdots