Mathematics, 18.11.2020 07:50 bcruz310

1) In an arithmetics progression, the sum of the first in terms is given by Sn = (9n - 3n²)/2. Find the sum of terms from
the 6th term to the 18th term. (4marks)
2) It is given that 6, 18 h and k are the four terms of a
geometric progression. Find the value of k. (2 marks)

Answers: 2

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1) In an arithmetics progression, the sum of the first in terms is given by Sn = (9n - 3n²)/2. Find...