Math_215_April_2005 - Be sure this examination has 3 pages,...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon

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

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Be sure this examination has 3 pages, including one page that just has a table. The University of British Columbia Final Examinations - April 2005 Mathematics 215: Elementary Differential Equations I Section 201 - John Fournier Section 202 - Pichmony Anhaouy Closed book examination. Time: 2.5 hours = 150 minutes. Special Instructions: No aids allowed, except for one coloured letter-size formula sheet. Write your answers in the answer booklet(s). If you use more than one booklet, put your name and the number of booklets used on each booklet. Show enough of your work to justify your answers. 1. (16 points) Compute solutions for the following initial-value problems, and find the largest t-intervals in which those solutions are valid. Could those intervals change if we changed the initial value y (2) to some other number y (2)? Explain briefly. (a) t dy dt + 3 y = 6 t 3 , y (2) = 8. (b) dy dt + 2 ty 2 = 2 y 2 , y (2) = 8. 2. (16 points) Consider the differential equation 2 y + 2 y + 0 y = F ( t ) , where one F ( t ) is used in part (a) below, and another is used in the rest of the question.) is used in part (a) below, and another is used in the rest of the question....
View Full Document

This note was uploaded on 01/23/2011 for the course MATH 100,200,30 taught by Professor Dr.alejandrocortas during the Winter '10 term at The University of British Columbia.

Page1 / 3

Math_215_April_2005 - Be sure this examination has 3 pages,...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online