Report copyright - PROFESSOR RICARDINHO. P. G. a 2 = a 1. q a 8 = a 1. q 7 a 10 = a 1. q 9 a n = a 1. q n – 1 a 1, a 2, a 3, ……., a n P. A. a 2 – a 1 = a 3 – a 2 = r a 2
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