POSSIBLE POINTS: 20
(Maximum mark: 6]
Only one of the following four sequences is arithmetic...
Mathematics, 22.09.2021 23:30 rustalex6045
POSSIBLE POINTS: 20
(Maximum mark: 6]
Only one of the following four sequences is arithmetic and only one of them is geometric.
an = 1, 5, 10, 15, ...
Cn = 1.5, 3, 4.5, 6, ...
2...
(2)
1 2 3 4
1 1
bn =
dn = 2, 1,
2' 3' 4' 5"
(a) State which sequence is arithmetic and find the common difference of the sequence.
(b) State which sequence is geometric and find the common ratio of the sequence.
(c) For the geometric sequence find the exact value of the eighth term. Give your answer
as a fraction,
2
2
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