1
AMS 361: Applied Calculus IV by Prof. Y. Deng
Quiz 1
Monday (02/20/2012) at 5:20PM6:40PM in 001 ESS
(1)
Closed Book with 1page (doublesided 8.5x11) selfprepared formulas.
(2)
Do any two of the three problems. If all three are attempted, the two best (and only
two) will be graded.
(3)
Each problem is worth 5 points for a total of 10 points (max).
(4)
No points for guessing work and for solutions without appropriate intermediate steps;
Partial credits are given only for steps that are relevant to the solutions.
(5)
No name, no grade and no question asked or answered.
SB ID
Name
Problems
To
Grade?
Score
Remarks
Q11
Q12
Q13
Total Score
Q11 (5 Points):
Find the general solution of the following DE:
࠵?
′
=
2
cos
!
࠵?
−
sin
!
࠵?
+
࠵?
!
2
cos
࠵?
You are given one solution to the DE:
࠵?
!
࠵?
=
sin
࠵?
Q12 (5 Points):
Find the general solution of the following DE using your favoriate
method:
࠵?
!
࠵?
!
+
࠵?
!
࠵?
−
࠵?
!
=
2
࠵?
!
You are given one solution to the DE:
࠵?
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 Spring '08
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