1 Each of the series below shows the first four terms of a geometric series. Identify the only one of these geometric series that is convergent.
[0pt] [1 mark] Tick \(( \checkmark )\) one box.
\(0.1 + 0.2 + 0.4 + 0.8 + \ldots\)
\includegraphics[max width=\textwidth, alt={}, center]{deec0d32-b031-4227-bc80-7150a0acbc94-02_113_113_858_927}
\(1 - 1 + 1 - 1 + \ldots\)
\includegraphics[max width=\textwidth, alt={}, center]{deec0d32-b031-4227-bc80-7150a0acbc94-02_117_117_1014_927}
\(128 - 64 + 32 - 16 + \ldots\)
\includegraphics[max width=\textwidth, alt={}, center]{deec0d32-b031-4227-bc80-7150a0acbc94-02_118_117_1169_927}
\(1 + 2 + 4 + 8 + \ldots\) □