The third term of an arithmetic series is 108 and the twelfth term is 54.
Find
(a) the common...
Mathematics, 17.12.2020 08:50 greenbyron88
The third term of an arithmetic series is 108 and the twelfth term is 54.
Find
(a) the common difference of the series [4]
(b) the first term of the series [1]
The sum of the first n terms of the series is Sn .
(c) Find Sn . [3]
Given that Sn = 1200,
(d) Find the possible values of n.
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Answers: 1
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