Exercise Determine whether the sequence (an) given by an n³ 3n² - 2 converges, and find its limit if it does. Name any results or rules that you use. You may use the basic null sequences listed in Theorem D7 from Unit D2. n³ 3n²-1 (a) Explain why the following solution to this exercise is incorrect and/or incomplete, identifying three errors or significant omissions. For each error or omission, explain the mistake that the writer of the solution has made. (There may be more than three errors or omissions, but you need identify only three. These should not include statements or omissions that follows logically from earlier errors or omissions.) Solution (incorrect and/or incomplete!) For n=1,2,..., we have n³ 3n² - 2 n³ 3n²-2 n³ 3n2 - 2 lanl VI (since n³ 3n² 2n + + + 3n2 n³ n³ 3n²-1 n³ 3n² - 2 n³ 3n² n.³ 3n2 - 1 > 0 and (by the Triangle Inequality) n³ 3n² - 1 > 0)
Exercise Determine whether the sequence (an) given by an n³ 3n² - 2 converges, and find its limit if it does. Name any results or rules that you use. You may use the basic null sequences listed in Theorem D7 from Unit D2. n³ 3n²-1 (a) Explain why the following solution to this exercise is incorrect and/or incomplete, identifying three errors or significant omissions. For each error or omission, explain the mistake that the writer of the solution has made. (There may be more than three errors or omissions, but you need identify only three. These should not include statements or omissions that follows logically from earlier errors or omissions.) Solution (incorrect and/or incomplete!) For n=1,2,..., we have n³ 3n² - 2 n³ 3n²-2 n³ 3n2 - 2 lanl VI (since n³ 3n² 2n + + + 3n2 n³ n³ 3n²-1 n³ 3n² - 2 n³ 3n² n.³ 3n2 - 1 > 0 and (by the Triangle Inequality) n³ 3n² - 1 > 0)
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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