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# Let x.t / be a harmful insect population (aphids?) that ISBN: 9780321796981 216

## Solution for problem 3 Chapter 6.3

Differential Equations and Boundary Value Problems: Computing and Modeling | 5th Edition

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Problem 3

Let x.t / be a harmful insect population (aphids?) that under natural conditions is held somewhat in check by a benign predator insect population y.t / (ladybugs?). Assume that x.t / and y.t / satisfy the predatorprey equations in (1), so that the stable equilibrium populations are xE D b=q and yE D a=p. Now suppose that an insecticide is employed that kills (per unit time) the same fraction f

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Quadric Surfaces SUGGESTED REFERENCE MATERIAL: As you work through the problems listed below, you should reference Chapter 11.7 of the rec- ommended textbook (or the equivalent chapter in your alternative textbook/online resource) and your lecture notes. EXPECTED SKILLS: ▯ Be able to compute & traces of quadic surfaces; in particular,...

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##### ISBN: 9780321796981

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