Question

Seja a p.g (5,25,..) determine o nono termo

Answer 1

$> \: resolucao \\ \\ \geqslant \: progressao \: \: geometrica \\ \\ q = \frac{a2}{a1} = \frac{25}{5} = 5 \\ \\ \\ = = = = = = = = = = = \\ \\ > \: o \: nono \: termo \: da \: pg \\ \\ an = a1 \times q {}^{n - 1} \\ an = 5 \times 5 {}^{9 - 1} \\ an = 5 \times 5 {}^{8} \\ an = 5 \times 390625 \\ an = 1953125 \\ \\ \geqslant \leqslant \geqslant \leqslant \geqslant \leqslant \geqslant \leqslant \geqslant$