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Find the fifth term of the geometric sequence with first term 2 and second term \(1/5\).

 Jan 29, 2022
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Since the series is geometric, you have to find the ratio between \(2\) and \(1 \over 5 \). To get from \(2\) to \(1 \over 5\), you multiply by \(1 \over 10\). This means that the \(5\)th term is \({2 \times {1\over10}^4} = {\color {blue} {1\over 5000}}\)

 Jan 29, 2022

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