Is 10, 5, 2.5, 1.25, 0.625, 0.3125 a geometric sequence?
Yes it is, with initial term
Each term of a geometric sequence is equal to the previous term multiplied by the common ratio.
In the example sequence, each term is one half of the preceding term, so it is a geometric sequence.
The general term of this sequence is given by the formula:
#a_n = a r^(n-1)#