Math 255 Midterm Exam I
Oct 4, 2010
Duration: 50 minutes
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Math 255 Midterm Exam II
Oct 25, 2010
Duration: 50 minutes
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The University of British Columbia
MATH 215/255, Sections 101105
Final Exam December 2009
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Circle Section:
101 Liu
102 T
Math 255 Midterm Exam III
Nov 19, 2010
Duration: 50 minutes
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Math 255 Midterm Exam III
Nov 19, 2010
Duration: 50 minutes
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Do not open this test until instructed to do so! This exam should have 11 pages,
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Mid-Term 2 SOLUTIONS
(4 points) 1. (a) Find the general solution to the equation y 4y + 4y = 0.
The characteristic equation for the dierential equation is r2 4r + 4 = (r 2)2 = 0,
which has a double ro
Mid-Term 1 SOLUTIONS
1. For each of the following initial value problems, determine the largest interval on which the
solution necessarily exists and is unique. Do not attempt to solve the initial val
Math 215/255 Midterm Exam II
Oct 25, 2010
Duration: 50 minutes
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Circle the course in which you are registered: Math 215 or Math 255
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Math 215/255 Final Exam (Dec 2005)
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Burggraf=101, Peterson=102, Khadra=103, Burghelea=104, Li=105
I have read and understood the inst