exam3fall05

# exam3fall05 - Math 254 Fall 2005(Prof Bayly EXAM 3(10...

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

Math 254, Fall 2005 (Prof. Bayly) EXAM 3 (10 November 2005) NAME: Recitation section, day, time, and location: Recitation instructor: There are 4 problems on this exam. Problems 1,2 are worth 20 points each, and problems 3,4 are worth 30 points each, but they are not all the same diﬃculty. We recommend you look over the entire exam before choosing which problem to start with. You are not expected to ﬁnish everything, but you should do as much as you can. It is extremely important to show your work and explain your reasoning. If you need additional paper, raise your hand and the proctor will bring you some. NO CALCULATORS ARE PERMITTED ON THIS EXAM! If you obtain a numerical expression you cannot evaluate without a calculator, represent it by a suitable symbol throughout the rest of the problem. The acronym ”DE” will stand for ”diﬀerential equation” throughout this exam. Problem (1): Problem (2): Problem (3): Problem (4): ———————————– Whole Exam:

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

View Full Document
(1)(20 points) The forcing function for a linear diﬀerential equation with constant coeﬃcients is f ( t ) = t 3 e - t + t 2 sin( t ) . (a)(5 points) What function form would be a good ﬁrst guess for the particular solution y p ( t ) of the DE (which you don’t even know yet)? (b)(5 points) If the complementary solution is (where
This is the end of the preview. Sign up to access the rest of the document.

## This note was uploaded on 04/29/2008 for the course MATH 254 taught by Professor Indik during the Fall '08 term at Arizona.

### Page1 / 6

exam3fall05 - Math 254 Fall 2005(Prof Bayly EXAM 3(10...

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

View Full Document
Ask a homework question - tutors are online