MATH10550 Midterm: MATH 10550 Exam 2 Spring 2012 Solutions

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31 Jan 2019
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2. (a) (a) (b) (b) (c) (c) (d) (d) (e) (e) 4. (a) (a) (b) (b) (c) (c) (d) (d) (e) (e) 6. (a) (a) (b) (b) (c) (c) (d) (d) (e) (e) 8. (a) (a) (b) (b) (c) (c) (d) (d) (e) (e) 10. (a) (b) (b) (c) (c) (d) (d) (e) (e) 4 (x 2)(x 3) (b) (a) ln 3 (x 2)(x 3) t 3 t 2| ln| dx = lim t ln| 1 dx = ln| x 3 x 2| + c. 2 (c) ln 2 (d) the integral diverges (e) What can be said about the integrals (i)z 1 (ii)z . Integral (i) diverges by the comparison theorem since the integrand is greater than. Find the centroid of the triangle with vertices ( 1, 0), (1, 0) and (0, 3). 2 (2)(3) = 3 and the moment about the x-axis is. 0 (9 18x + 9x2)dx = 9 9 + 3 = 3.