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Mathematics for IGCSE & O level - Sequences (Section 2 - No. 11)
If a sequence follows the rule \(a_n = a_{n-1} + 4\), and \(a_1 = 2\), then what is \(a_3\)?
6
8
10
14
Explication
a_2 = 2 + 4 = 6, a_3 = 6 + 4 = 10
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