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Mathematics
Problem
For a geometric progression with common ratio
r
≠
1
r \neq 1
r
=
1
, the sum of the first three terms equals three times the first term. What is the value of
r
r
r
? a)
−
3
2
-\dfrac{3}{2}
−
2
3
b)
−
2
-2
−
2
c)
2
3
\dfrac{2}{3}
3
2
d)
2
2
2
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