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Presentation transcript:

Bellwork

Finding Sums of Infinite Geometric Series Section 8.4

What You Will Learn Find partial sums of infinite geometric series. Find sums of infinite geometric series.

Partial Sums of Infinite Geometric Series The sum Sn of the first n terms of an infinite series is called a partial sum. The partial sums of an infinite geometric series may approach a limiting value.

Step 2: Plot the points (1, 0. 5), (2, 0. 75), (3, 0. 88), (4, 0 Step 2: Plot the points (1, 0.5), (2, 0.75), (3, 0.88), (4, 0.94), and (5, 0.97). The graph is shown at the right. From the graph, Sn appears to approach 1 as n increases.

Take Note