How to determine the sum of a finite geometric sequence

The video tutorial explains how to determine the sum of a finite geometric series. It introduces two methods: manually adding terms and using a formula. The tutorial details the formula's application, including calculating the ratio and plugging values into the formula. It provides a step-by-step solution for a series with 12 terms, highlighting potential pitfalls and ensuring accuracy. The final sum is calculated, and the importance of using a calculator for large series is emphasized.

What mistake did the teacher make while calculating the final answer?

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Explain the process of calculating the sum of the first 12 terms in the series.

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