Answer
Common difference = -3
Common difference = -
Explanation
The nth term of an arithmetic progression is given as
aₙ = a + d (n - 1)
aₙ = nth term
a = First term
d = common difference
n = number of terms
Comparing this to the given general term
An = 5 + -3 (n - 1)
We see that
d = -3
For the second expression,
An = 5 + -8 (n - 1)
Comparing this with the general form,
aₙ = a + d (n - 1)
a = 5
d = -8
Common difference = -8
Hope this Helps!!!
