Determine whether each sequence is geometric, arithmetic, or neither. Justify your answer.
1/5, 1/4, 1/3,1/2,1
T2-T1 = 1/20
T3-T2 = 1/12
So, not arithmetic
T2/T1 = 5/4
T3/T2 = 4/3
So, not geometric
1/5, 1/4, 1/3,1/2,1
T3-T2 = 1/12
So, not arithmetic
T2/T1 = 5/4
T3/T2 = 4/3
So, not geometric