Answer:
It is an Arithmetic sequence
Common difference = 3/4
Explanation:
Determine whether the given sequence could be geometric, arithmetic, or neither. If possible identify the common ratio or common difference 1/2,5/4, 2, 11/4..
We are given the sequence:
1/2, 5/4, 2, 11/4.
We are to determine if this is an Arithmetic or Geometric sequence
Hence:
To determine if this is an Arithmetic sequence, we find the Common difference
Common difference = Second term - First term
= 5/4 - 1/2
Lowest Common Denominator = 4
= 5 - 2/4 = 3/4
or Third term - Second term
2 - 5/4
Lowest Common Denominator = 4
2/1 - 5/4
8 - 5/4
= 3/4
We have the same common difference.
To determine if this is an Geometric sequence, we find the Common ratio
Common ratio = Second term / First term
= 5/4 ÷ 1/2
5/4 × 2/1
= 5/2 = 2 1/2
or Third term /Second term
2 ÷ 5/4
2 × 4/5
= 6/5
= 1 1/5
It is not a geometric sequence
Therefore , the above sequence in the Question is an Arithmetic sequence.