Only one of the following four sequences is arithm
c3ernp9s8;e6mazfo2o bsc;u9 ssa 4(etic and only one of them is geom
ers964 b ;8s;onssa3 (2umco9 fcpeazetric.
1.State which sequence is arithmetic and find the common difference of the sequence.
Hence C$_n$ is arithmetic and d=
.
2.State which sequence is geometric and find the common ratio of the sequence.
Hence d$_n$ is geometric and r=
.
3.For the geometric sequence find the exact value of the eighth term. Give your answer as a fraction.
Using the nth term formula d$_n$=
.