NAME
4 problems- 25 points each
DIFFERENTIAL EQUATIONS
Test 3B
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1 Solve by using power series: 2 y' y e x . Compute the first 6 coefficients a0 a5 .
Show your answer is equivalent to y 2e x ce x / 2 , where c is a constant.
2
NAME
DIFFERENTIAL EQUATIONS
4 problems- 25 points each
Test 2C
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1 (15 points) Compute the Wronskian for the set of three functions
cfw_4, e 2 Ax , e Bx
where A and B are constants.
(10 points) Determine the conditions on the
NAME
MATH 227 DIFFERENTIAL EQUATIONS
4 Problems- 25 points each
Test 1B
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1
An airplane takes off on a runway that is 3 kilometers long. The plane starts off
with an initial velocity of 15 meters/sec and moves with constant ac
NAME
MATH 227 DIFFERENTIAL EQUATIONS
4 Problems- 25 points each
Test 1B
Show all work for full credit!
1
An airplane takes off on a runway that is 3 kilometers long. The plane starts off
with an initial velocity of 15 meters/sec and moves with constant ac
NAME
MAT 227 Differential Equations
5 problems- 20 points each
Test 4C
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if 0 t 2
2
if 2 t 3 . Use the definition to find the Laplace
Suppose f (t ) t
sin 2t if t 3
transform.(You may use the table of integrals from your book,