Proof Prove that for
Chapter 9, Problem 101(choose chapter or problem)
Proof Prove that \(\frac{1}{r}+\frac{1}{r^{2}}+\frac{1}{r^{3}}+\cdots=\frac{1}{r-1}, \text { for }|r|>1\).
Text Transcription:
1/r+1/r^2+1/r^3 + … = 1/r-1, for |r| > 1
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