Question

find the sum of the infinite geometric sequence whose first term is 1.2, whose ratio is 0.5, and which has four terms

Answer 1

Answer:

The sum of the sequence is 2.4

Step-by-step explanation:

The sum of infinite geometric sequence is given as:

`S_(\infty)=(a)/(1-r)`

where a is the first term and r is the common ratio.

Using the given a = 1.2, and r = 0.5, we have:

`\begin{gathered} S_(\infty)=(1.2)/(1-0.5) \\ \\ =(1.2)/(0.5)=2.4 \end{gathered}`