The given sequence is arithmetic.
Further explanation:
In order to find if a sequence is arithmetic or not. We have to check if the common difference d is same for all consecutive terms or not.
So,
40-52 = -12
28-40 = -12
16-28 = -12
As we can see that the common difference is same i.e. d=-12, it can be concluded that given sequence is arithmetic sequence.
Keywords: Arithmetic Sequence, Common Difference
Learn More at:
#LearnwithBrainly