Find the Sum of the Infinite Geometric Series $\frac { 1 } { 3 } + \frac { 2 } {9 } + \frac { 4 } { 27 } + \frac { 8 } { 81 } + \cdots$

question 57

Essay

Find the sum of the infinite geometric series $\frac { 1 } { 3 } + \frac { 2 } {9 } + \frac { 4 } { 27 } + \frac { 8 } { 81 } + \cdots$ .

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