The first term of an arithmetic series $$\(S\)$$ is -6 The sum of the first 30 terms of $$\(S\)$$ is 2865 Find the 9th term of $$\(S\)$$.
Exam No:4MA1_2HR_que_20200305 Year:2020 Question No:IGCSE&ALevelMathematics2020IG2030
Answer:
Knowledge points:
3: Sequences, functions and graphs
Solution:
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