Copy of final

# Copy of final - MATH 104 ﬁnal test Dec 16th Name Student...

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MATH 104, final test, Dec 16th. Name Student ID # All the necessary work to justify an answer and all the necessary steps of a proof must be shown clearly to obtain full credit. Partial credit may be given but only for significant progress towards a solution. Show all relevant work in logical sequence and indicate all answers clearly. Cross out all work you do not wish considered. Books and notes are allowed. Calculators, computers, cell phones, pagers and similar devices are not allowed during the test. 1. (10pts total) Construct, with proof, a compact set of real numbers whose limit points form a countable set. 1

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2. (10pts total) Suppose that the coefficients of the power series n a n z n are integers, infinitely many of which are distinct from zero. Prove that the radius of convergence is at most 1. 2
3. (10pts total, 5pts each subitem) Evaluate ( a ) lim n →∞ 1 n n j =1 e j/n , ( b ) lim n →∞ 1 n n j =1 ( - 1) j j n 100 . 3

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