Math 125: Week 8

Week 7 outline    Math 125 main page    Week 9 outline

What Where Link
Reading Text -- 8.3; 9.1
Worksheet    Website – Improper Integrals and Approximations Improper.pdf
Worksheet 8 Solutions
Homework WebAssign WebAssign site for UW

Student Guide:

Section 8.3 covers an application from Physics: Center of Mass. The topic starts with a summation of discrete data and eventually replaces the summation with an integral. As always, the most important thing here is understanding the process of modeling a problem with an integral. When studying this topic, students often have difficulty with the concept of the moment of a system. Center of Mass may be covered before or after the midterm.

This is the week of Midterm #2. Depending on the quarter and instructor, the material covered on the second midterm will vary. Ask your instructor for precise information on the sections covered. Keep these comments in mind as you look over old midterms in the archive. The midterm will be given in TA section. Many instructors devote one lecture period to an in-class review session, the day before the midterm.

The rest of the quarter is devoted to the last topic in the class, namely Differential Equations. A large number of applied problems in Physics, Engineering, Economics and other areas can be modeled using Differential Equations. They are often very difficult to solve and we will focus on the just easiest cases.

The notation and terminology are introduced in Section 9.1. Building a differential equation from a written description of a situation is discussed. General Solutions and Initial Value Problems are contrasted.

WORKSHEET: The short worksheet Improper.pdf is optional, intended to be given Tuesday, before the midterm. It reviews Improper Integrals and approximation using the Trapezoid Rule.

Week 7 outline    Math 125 main page    Week 9 outline