Final answer:
The question seems to be about finding the sum of a geometric series, but due to typographical errors, it's not possible to provide an accurate answer.
Step-by-step explanation:
The equation presented appears to be a geometric series with a common ratio. To solve this, you would identify the first term and the common ratio, and use the formula for the sum of a finite geometric series, which is Sn = a1/(1 - r), where a1 is the first term and r is the common ratio. From the pattern of the series, you can determine these values and then calculate the sum. However, the series as presented seems to contain typographical errors, and it's critical to have the correct expression to find the sum. Without the proper format of the question, providing an accurate sum is not feasible.