Find the value of 'r' — task. Mathematics State Board, Class 10.

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Find the value of \(r\), if:

\(1\) \(+\) \(r\) \(+\) \(r^2\) \(+\)\(…\) \(=\) \(\frac{8}{5}\)

\(r\) \(=\)

\frac{i}{i}

[Note: Do not reduce the fraction obtained.]

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1. Find the value of 'r'