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Unformatted text preview: Jonathan Kim Assignment A4 MATH141, Winter 2008 You may attempt each problem a maximum of 5 times. Please remember that, while WeBWorK can usually check only the correctness of your answers, your responsibility in this course is to be able to justify your answers to problems of all these types, and others. The assignment is due Sunday, March 16, 2008, at 11:30 PM. 1. (1 pt) Evaluate the integral. 2 1 9 x 21 x 2 6 x 5 dx Correct Answers: 2.14129940328804 2. (1 pt) Evaluate the indefinite integral. 5 x 3 46 x 2 85 x 98 x 2 10 x 25 dx +C Correct Answers: ( 5*x**2/2+4*x+2/(x+5) ) + Q 3. (1 pt) Evaluate the integral. 1 x x 3 dx +C Correct Answers: (ln(x + 3))/(3)  (ln(x+0))/(3) 4. (1 pt) Evaluate the integral. x 2 14 x 94 x 3 7 x 2 31 x 25 dx +C HINT: 1 is a root of the denominator. Correct Answers: ( 2*ln(x*x+6*x+25)+4*ln(abs(x+1))+1.5*arctan((x+3)/4) ) + Q 5. (1 pt) Evaluate the integral....
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 Fall '07
 BrianMcGill

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