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Question 0404c
Arithmetic and Geometric Progressions (APs, GPs)
Sigma III
Question
Generate new
Evaluate
∑
r
=
1
∞
(
−
1
3
)
r
.
{\displaystyle \sum_{r=1}^{\infty} \left( - \frac{1}{3} \right)^r.}
r
=
1
∑
∞
(
−
3
1
)
r
.
Attempt
Your answer:
Answer
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