MATH-0042 Midterm: midterm2sol

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9 Jan 2019
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For each problem, you should write down all of your work carefully and legibly to receive full credit. When asked to justify your answer, you should use theorems and/or mathemat- ical reasoning to support your answer, as appropriate. There is a list of formulas and four pages of blank paper at the end of the exam. 1/ex = e x, which has radius of convergence : (3 pts. ) Let t7(x) be the degree 7 taylor polynomial for a function f (x), centered at a = 2. Since f (x) = t7(x) for all x, f (x) is at most a degree 7 polynomial. Thus, its ninth deriva- tive is exactly zero at any point. In particular, f (9)(3) = 0: (3 pts. ) (true or false) simpson"s rule is always more accurate than the trapezoid rule. 2 (| 1| + 2|0| + |1|) = 1 and simpson"s rule gives 1.