Question

Find the common ratio of the geometric sequence 16 , − 32 , 64

Answer 1

-2

Check:

16*-2 is -32

-32 * -2 is 64

Answer 2

common ratio r = - 2

Explanation:

the common ratio r is calculated as

r =
`(a_(2) )/(a_(1) )` =
`(-32)/(16)` = - 2