Problem 5. A vending machine dispensing books of stamps accepts only $1 coins, $1 bills, and $2 bills. Let an denote the number of ways of depositing n dollars in the vending machine, where the order in which the coins and bills are deposited matters. (a) Find a recurrence relation for an and give the necessary initial condition(s). (b) Find an explicit formula for an by solving the recurrence relation in part (a).
Problem 5. A vending machine dispensing books of stamps accepts only $1 coins, $1 bills, and $2 bills. Let an denote the number of ways of depositing n dollars in the vending machine, where the order in which the coins and bills are deposited matters. (a) Find a recurrence relation for an and give the necessary initial condition(s). (b) Find an explicit formula for an by solving the recurrence relation in part (a).
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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
Transcribed Image Text:Problem 5. A vending machine dispensing books of stamps accepts only $1 coins, $1 bills, and $2 bills. Let
an denote the number of ways of depositing n dollars in the vending machine, where the order in which
the coins and bills are deposited matters.
(a) Find a recurrence relation for an and give the necessary initial condition(s).
(b) Find an explicit formula for an by solving the recurrence relation in part (a).
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