lecture03

# lecture03 - Section 1.2 1.3 contd Sec 2.2-2.3 Lecture 03...

This preview shows pages 1–6. Sign up to view the full content.

Section 1.2, 1.3, cont’d, Sec 2.2-2.3 Jan 22, 2009 Lecture 03

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Today For quick access to the syllabus and links to software we are using visit http://math.arizona.edu/ hermi/spring09/ To integrate, if you do not have an integral table, visit http://integrals.wolfram.com/ Please register and access WebAssign–Class Key: arizona 9835 7019 Clickers (Register your clickers via D2L, by Jan 27) Lecture 03
Remember: WebAssign homework is already online, start working on it. The “Review Test” is Jan 27 (so practice the review problems in D2L) The distribution of the questions for the “Review Test” is as follows: 2 derivatives, 2 integrals, 2 Taylor series, and 2 complex numbers questions. Lecture 03

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Linear Differential Equations A differential equation is said to be linear if the following holds: If y 1 and y 2 are solutions, then c 1 y 1 + c 2 y 2 is also a solution, for every real numbers c 1 and c 2 . This means two things: A multiple of a solution is also a solution The sum of two solutions is also a solution Example 1: (a) Explain why the following equation is linear: y ′′ - y - 2 y = 0 Lecture 03
Example 1, cont’d Suppose y 1

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern