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3 cards from this section. Quick, good the night before a test.
What is the general form of a linear homogeneous recurrence relation?
Look for the structure where the n-th term relates to its predecessors.
Define characteristic roots in the context of recurrence relations.
Think about how these roots connect to the structure of the recurrence.
What does the characteristic equation help us identify?
Recall its purpose in the solution process.
True or False: All roots in a characteristic equation must be distinct.
Consider instances where roots overlap.
Consider the recurrence relation S(n) = 2 * S(n-1) + 3 * S(n-2) with S(0) = 1 and S(1) = 4. Find the characteristic roots and derive the general form of the solution.
Start with the characteristic equation before substituting in initial conditions.
Given a recursion with repeated roots, S(n) = S(n-1) + S(n-2) with initial conditions S(0) = 1 and S(1) = 1, show how you would find the nth term.
Make sure to label your roots correctly when handling repeated instances.
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