Question

oqual é o termo geral da p.a (10,13...)?​

Answer 1

$> \: resolucao \\ \\ \geqslant \: progressao \: \: aritmetica \\ \\ r = a2 - a1 \\ r = 13 - 10 \\ r = 3 \\ \\ = = = = = = = = = = = = = = = = = = \\ \\ > \: o \: termo \: geral \: da \: pa \\ \\ an = a1 + (n - 1)r \\ an = 10 + (n - 1)3 \\ an = 10 + 3n - 3 \\ an = 3n + 7 \\ \\ \\ \geqslant \leqslant \geqslant \leqslant \geqslant \leqslant \geqslant \leqslant \geqslant \leqslant \geqslant \leqslant \geqslant$