Question: Suppose a recurrence relation an=an−1+2an−2 where a1=11 and a2=31 can be represented in explicit formula, either as: Formula 1: an=pxn+qnxn or Formula 2: an=pxn+qyn where x and y are roots of the characteristic equation. **If the explicit formula is in the form of Formula 2, consider p > q. Determine p and q
Question: Suppose a recurrence relation an=an−1+2an−2 where a1=11 and a2=31 can be represented in explicit formula, either as: Formula 1: an=pxn+qnxn or Formula 2: an=pxn+qyn where x and y are roots of the characteristic equation. **If the explicit formula is in the form of Formula 2, consider p > q. Determine p and q
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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Question:
Suppose a recurrence relation
an=an−1+2an−2
where a1=11 and a2=31
can be represented in explicit formula, either as:
Formula 1: |
an=pxn+qnxn
|
or
Formula 2: |
an=pxn+qyn
|
where
x
and
y
are roots of the characteristic equation.
**If the explicit formula is in the form of Formula 2, consider p > q.
Determine
p
and
q
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