Posted by Ellie on .
Is this correct? Write an explicit and recursive formula: 5,4,3,2,1... explicit: 5N+1
recursive:An1+1

math please please! 
Reiny,
In the recursive, if you meant
A_{n} = A_{n1} + 1 , you should have included, n > 1, A_{1} = 5
In the recursive notation, the initial value(s) has to be included or else you can't start the thing off.