Question

determine a razao q da pg 1.3.9

Answer 1

$\\ q = \frac{a_{n+1} }{a_{n-1} } \\ \\ q = \frac{3}{1} = 3.... ou... \frac{9}{3} = 3$

Answer 2

1.3.9
1x3=3x3=9
razão e 3