Question

Find the common ratio of the sequence -164, -82, -41, -20.5

Answer 1

Answer:

r = $\frac{1}{2}$

Step-by-step explanation:

The common ratio r of a geometric sequence is

r = $\frac{a_{2} }{a_{1} }$ = $\frac{a_{3} }{a_{2} }$ = $\frac{a_{4} }{a_{3} }$ = ......

r = $\frac{-82}{-164}$ = $\frac{-41}{-82}$ = $\frac{1}{2}$