Chapter B.2, Problem 1MP

(A)

To determine

Whether the sequence $8,2,0.5,0.125$ is an arithmetic sequence or a geometric sequence.

(B)

To determine

Whether the sequence $-7,-2,3,8,\mathrm{...}$ is an arithmetic sequence or a geometric sequence.

(C)

To determine

Whether the sequence $1,5,25,100,\mathrm{...}$ is an arithmetic sequence or a geometric sequence.