Question

Determine a soma da PG infinita de primeiro termo 3/10 e razão 1/10

Answer 1

$S_\infty=\frac{a_1}{1-q}$

$S_\infty=\frac{\frac{3}{10}}{1-\frac{1}{10}}=\frac{\frac{3}{10}}{\frac{9}{10}}=\frac{3}{10}*\frac{10}{9}=\frac13$