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Mathematics for IGCSE & O level - Sequences (Section 4 - No. 22)
What is the 6th term of a sequence if the nth term is given by \(T_n = n^2 - 2n\)?
12
18
24
30
Forklaring
Substitute n=6 into T_n. (6^2) - 2(6) = 24
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