M251ex1(su08)

# M251ex1(su08) - MATH 251 Examination I July 8 2008 Name...

This preview shows pages 1–3. Sign up to view the full content.

MATH 251 Examination I July 8, 2008 Name: Student Number: Section: This exam has 11 questions for a total of 100 points. In order to obtain full credit for partial credit problems, all work must be shown. Credit will not be given for an answer not supported by work. The point value for each question is in parentheses to the right of the question number. You may not use a calculator on this exam. Please turn off and put away your cell phone. 1: 2: 3: 4: 5: 6: 7: 8: 9: 10: 11: Total: Do not write in this box.

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

View Full Document
EXAMINATION I July 8, 2008 1. (5 points) Which of the following ﬁrst order diﬀerential equation is both linear and au- tonomous? (a) y 0 + ty = 0 (b) y 0 - y 3 = 2 (c) y 0 + 4 y = π (d) y 0 + e y - 5 t = 0 2. (5 points) Consider the initial value problem ( t 2 - 16) y 0 + sin( t 5 ) y = t + 1 t - 1 , y ( π ) = 1 2 . Without solving the equation, what is the largest interval in which a unique solution is guar- anteed to exist? (a) (1
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### Page1 / 10

M251ex1(su08) - MATH 251 Examination I July 8 2008 Name...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online