Question

Find the sum of each of the following infinite series : 

6 + 1.2 + 0.24 + ….. ∞

Answer 1

It is Infinite Geometric Series. 

Here, a = 6,

r = \(\frac{1.2}{6} = \frac{2}{10} = 0.2\)

The formula used: Sum of an infinite Geometric series = \(\frac{a}{1-r}\)