Question

Which answer describes the pattern in this sequence?12) 412, 1, 21OaddO multiply by 2o subtract 1multiply by12

Answer 1

The answer that describes the pattern in this sequence is;

`\text{ multiply by }(1)/(2)`

Step-by-step explanation:

Given the sequence;

`2,1,(1)/(2),(1)/(4),\ldots`

The sequence shows a Geometric Progression.

The common ratio of the sequence would be;

`\begin{gathered} r=(1)/(2)=((1)/(2))/(1)=((1)/(4))/((1)/(2)) \\ r=(1)/(2) \end{gathered}`

Therefore, the answer that describes the pattern in this sequence is;

`\text{ multiply by }(1)/(2)`