Question

1) Encontre o termo geral da PG (1, 3, ...). ​

Answer 1

$> resolucao \\ \\ \geqslant progressao \: \: geometrica \\ \\ q = \frac{a2}{a1} = \frac{3}{1} = 3 \\ \\ \\ an = a1 \times q {}^{n - 1} \\ an = 1 \times 3 {}^{n - 1} \\ an = 3 {}^{n - 1} \\ \\ \\ \geqslant \leqslant \geqslant \leqslant \geqslant \leqslant \geqslant \geqslant \geqslant$