Practice Problems for Exam 1
Math 108-02, Duke University Feb. 9, 2011
Solve the following differential equations or initial value problems: 1. y + 2ty = 2t 2. t3 y + 4t2 y = e-t , y(-1) = 0 (and determine the largest interval on which the solution exist
Math 108
Exam 1
March 2, 2011
Name:
Grade:
/ 100
Instructions: Each problem is worth 20pts. Put your answers inside a box for clarity. Good luck! Problem 1. Find an explicit solution (in the form y = f (x) to the initial value problem. x ; y(0) = -1. y
Math 108
Exam 2
March 30, 2011
Name:
Grade:
/ 100
Instructions: Each problem is worth 20pts. Put your answers inside a box for clarity. You may use the back of each page for your answers if you need to. Good luck! Problem 1. Compute or prove the followi
Math 10801 First Midterm Examination
February 25, 2011
NAME I (Please print)
1. Do all computations on the examination paper. You may use the backs of the pages if
necessary.
2
3
4
5
6
7
8
9
Ir-
Instructions:
2. Write equations and inequalities,
Math 108
Exam 3
April 20, 2011
Name:
Grade:
/ 100
Instructions: 5 points will be counted towards the clarity of your paper. You must show all steps of the process used to obtained the form of the solutions. Write clearly, presenting your answers in orde
Math 108 Second Examination April 14th, 2011
NAME
(Please print)
Problem 1 2 3 4 5 Total
Possible 20 20 20 20 20 100
Score
Instructions: 1. Do all computations on the examination paper. You may use the backs of the pages if necessary. 2. Write equations a
Math 108 Final Exam 10 Questions, each worth 10 points 1. Solving an Exact equation. Solve for constant value b such the equation is exact. Solve the equation for this value of b 2. Draw a phase plot, identify the equilibrium solutions and their stability
Math 108 Williams Midterm 2 - 4/14/2010
60 Minutes; no notes, books, calculators; you may use the official formula sheets.
Name: _ Section 03 / Section 04
To receive credit, you must show your work, explain your reasoning, and demonstrate the use of the s
EXAM 3
Math 108 ODE & PDE, Section 2
Instructor: Guangliang Chen
Duke University, Spring 2011
You have 50 minutes.
No notes, no books, no calculators.
You must Show ALL work and explain your reasoning CLEARLY
to receive full credit.
Please write your
EXAM 1
Math 107, 20112012 Spring, Clark Bray.
You have 50 minutes.
No notes, no books, no calculators.
YOU MUST SHOW ALL WORK AND EXPLAIN ALL REASONING
TO RECEIVE CREDIT. CLARITY WILL BE CONSIDERED IN GRADING.
All answers must be simplied. All of the poli
EXAM 2
Math 107, 2009-2010 Spring, Clark Bray.
You have 50 minutes.
No notes, no books, no calculators.
YOU MUST SHOW ALL WORK AND EXPLAIN ALL REASONING
TO RECEIVE CREDIT. CLARITY WILL BE CONSIDERED IN GRADING.
Good luck!
Name
ID number
1.
2.
I have adher
MTH 108 Fall 09-10 Exam 2, Show all work. Justify procedures and calculations except when they are obvious as, for example, when you integrate both sides of an equation. When doing so, use complete, grammatically correct sentences. No books, notes, calcul
MTH 108 Section 04. Fall 09 Exam 1, Show all work. Justify procedures and calculations except when they are obvious as, for example, when you integrate both sides of an equation. When doing so, use complete, grammatically correct sentences. No books, note
ORD & PRTL DIFF EQUATIONS-MATH 108-Springl 2010
Name No Calculators. Closed book and notes. Write your nal answers in the boxes provided. You may use the back of the pages. Each question is worth 15 points.
Instructor: Stefano Guerra
Second Midterm Exam M