# Quiz for MATH 221 - ELEM CALCULUS II with Washington at Maryland (UMD)

## Quiz Information

 Material Type: Quiz 2 Professor: Washington Class: MATH 221 - ELEM CALCULUS II Subject: Mathematics University: University of Maryland Term: Fall 2006 Keywords: UnauthorizedProvided ThatCalculatorsUnauthorized AssistanceHonor PledgeLiving WillYou Have...Initial ConditionsEngineeringMathematics

## Sample Document Text

MATH 221 (Washington) Exam 2 October 26, 2006 Name: TA and time: C"lanCOjh 6l p rn This exam has 3 pages. Solve each problem in the space provided and clearly indicate your answer. If you need more space, use the reverse side of the page and indicate that you have done so. You must show your work to receive credit for a problem. You may NOT use calculators. At&v::>e.( _ . 1. 1 15 pOints) Solve y' = 6te- 3t - 3y, y(O) = 5. ----t>- 0 n bo...C\L crt fQf~1 "p"--\ CG\\Cu\C\-non: -t(,~):;-\" -\\L~}-;.T----' (37 ~r) '-d~~t :: lDt e- 5b -3'1 - p--j-f:;. '- '" ._ \ _e-3t ql)<..)~'-VlC:~'):;;'"3 J3~ d~ ::fllte-3~ db ~u 1 = to S -te 3 \:;. c\ \:, 0; ...) I -- lt. \ - 3t.. _ .')- c}Lj'2- :;: & (- 3t-e - 9 e 1 C (j -- -st" 0( - 3t C J.. '3 _ '2-- = - ate --e + 3 ___ )1 3 2. (15 points) Solve y' = (e t + 4)y2, %t ~(et:-t tf) ~-:& 5 ~2 dlj jl~~ t '-\-') c\t.- The following formulas might be useful: y = e-A(t) [J eA(t)b(t) dt + cJ ' J fgdx = fG - J f'Gdx 1 ...

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