Mathematics 9709 · AS & A Level · Series

Series — practice question

The progression starts with $36$ as the first term and $32$ as the second term.
(i)[2]

Since the progression is geometric, determine the sum to infinity.

(ii)[3]

If the progression is arithmetic instead, determine the number of terms when the sum of all the terms is $0$.

Worked solution & mark scheme

This 5-mark question has a full step-by-step worked solution and mark scheme. One marking point: Applies a method to determine $r$ and $S_\infty$, with $|r|<1$

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