Answer:
Recursive formula is:
Explicit formula is:
Step-by-step explanation:
We need to find recursive formula and explicit formula for arithmetic sequence -1,6,13,20,27
In the given sequence First term a₁= -1
Common difference d = 7
Finding Recursive Formula
The recursive formula is of type: and
Since the First term a₁ is -1 and common difference d is 7 so, the recursive formula for given arithmetic sequence will be:
Finding Explicit Formula
The explicit formula is of type:
We have
First term a₁= -1
Common difference d = 7
So, explicit formula will be:
So, explicit formula is: