[SOLVED] CSE211 - Homework 4

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Problem 1: Nonhomogeneous Linear Recurrence Relations                                                           (15+15=30 points)

Consider the nonhomogeneous linear recurrence relation an = 3an−1 + 2n .

  • Show that whether an = −2n+1 is a solution of the given recurrence relation or not. Show your work step by step.

(Solution)

  • Find the solution with a0 = 1.

(Solution)

Problem 2: Linear Recurrence Relations                                                                                                               (35 points)

Find all solutions of the recurrence relation an = 7an−1 – 16an−2 + 12an−3 + n4n with a0 = -2, a1 = 0, and a2 = 5.

(Solution)

Problem 3: Linear Homogeneous Recurrence Relations

Consider the linear homogeneous recurrence relation an = 2an−1 – 2an−2.

(a) Find the characteristic roots of the recurrence relation.

(20+15 = 35 points)

(Solution)

(b) Find the solution of the recurrence relation with a0 = 1 and a1 = 2. (Solution)

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