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Home > INT3 > Chapter 10 > Lesson 10.3.2 > Problem 10-170

10-170.

Calculate the sum of the first six terms of the series 2 + 6 + 18 + 54 + … . Homework Help ✎

Find the common ratio.

Using t(n) = a · r n − 1, find t(6).

Now find the sum of the geometric series using: