Question #1abf2
1 Answer
Jan 1, 2018
There are two correct answers; a & c.
Explanation:
Arithmetic sequences are those whose terms have a common difference across all of the terms in the sequence and can be expressed using the following recursive definition:
Where the first term is equal to
Option a can be expressed as follows:
Option c can be expressed as follows:
Hence both are arithmetic sequences (the other two options are geometric sequences with common ratios of 4 and 0.25 respectively)
Hope that helps :)