ACC 301 Chapter 9 Quiz
Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. _ 1. The gross profit method of inventory valuation is invalid when a. there is substantial increase in the quantity of inv
Problem set 3
Math 207A, Fall 2011
Solutions
1. For each of the the following systems, find the equilibria and their stability.
Determine what bifurcations occurs, sketch the bifurcation diagram, and
sketch the qualitatively different phase lines:
(a) xt
HW #5 - Solutions of Selected Problems
6.3.2 (Page 182)
First we nd the xed points by solving x = 0, y = 0 simultaneously. Hence we need
x = 0 or x = 1, and y = k for some integer k. The Jacobian matrix at a general point
(x, y) is
x
x
0
cos y
x
y
=
.