The 8th term of a Gp is ~7/32

find its common ratio if Its first term is 28

4 answers

the 8th term is ar^7, so
r^7 = (-7/32)/28 = -1/128 = (-1/2)^7
i need the workings
the 8term of ap is 732 find it common ratio if it first term is 28
the answer