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Question 0402c
Arithmetic and Geometric Progressions (APs, GPs)
GP III
Question
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Consider the infinite geometric series
−
1
+
4
5
−
16
25
+
…
- 1 + \frac{4}{5} - \frac{16}{25} + \ldots
−
1
+
5
4
−
25
16
+
…
Find the sum to infinity.
Attempt
S
∞
=
{S_\infty = }
S
∞
=
Answer
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