Question: The explicit formula for a partial sum of a geometric series is Sn = u1(1 -rn) / 1 - r. To find the sum of

The explicit formula for a partial sum of a geometric series is Sn = u1(1 -rn) / 1 - r. To find the sum of an infinite geometric series, you can imagine substituting for n. Explain what happens to the expression u1(1 -rn) / 1 - r when you do this substitution.

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If r 1 then as n approaches infinity r n approaches 0 and u 1 1 r n 1 r approaches u 1 1 0 1 ... View full answer

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