(5)/(9,) (5)/(3,) 5,15,45 are these numbers a sequence of geometric numbers

It is a sequence of geometric numbers.

Step-by-step explanation:

A sequence or series of numbers where each term after the first term is found by multiplying it with a fixed or certain number is called a geometric sequence or geometric progression.

We can check whether the given series is geometric or not by dividing each term by its previous term to see if their common ratio is the same.

Since the common ratio is the same, therefore it is a sequence of geometric numbers.