Question

Qual é o nono termo da progressão geométrica ( 5,15,45,135

Answer 1

$> resolucao \\ \\ \geqslant progressao \: \: geometrica \\ \\ q = \frac{a2}{a1} \\ q = \frac{15}{5} \\ q = 3 \\ \\ \\ \geqslant o \: nono \: termo \: da \: pg \\ \\ \\ an = a1 \times q {}^{n - 1} \\ an = 5 \times 3 {}^{9 - 1} \\ an = 5 \times3 {}^{8} \\ an = 5 \times 6561 \\ an = 32805 \\ \\ \\ \geqslant \leqslant \geqslant \leqslant \geqslant \leqslant \geqslant \leqslant \geqslant \geqslant \geqslant$