Question

Complete the recursive formula of the geometric sequence -0.3,0.9,-2.7,8.1

Answer 1

Answer:

$a_{n}$ = - 3$a_{n-1}$ with a₁ = - 0.3

Step-by-step explanation:

The recursive formula for a geometric sequence is of the form

$a_{n}$ = r$a_{n-1}$

where r is the common ratio

r = $\frac{a_{2} }{a_{1} }$ = $\frac{0.9}{-0.3}$ = - 3 , thus

$a_{n}$ = - 3$a_{n-1}$ with a₁ = - 0.3