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Unformatted text preview: ———————————————————- —————————- Please print your complete name (family, given) and university number here. University of Hong Kong Fall 2011 Math 1813 Mathematical Methods for Actuarial Science Instructor: Siye Wu Midterm Examination No. 1 (Tuesday, 11 October) Books, notes or calculators are not allowed in this exam. There are three problems. Except in the first problem, show all your steps. If you have two different solutions or answers to any problem, you must cross out one; otherwise the one with the lower grade will count. You will be graded both on the correctness of your answer and the clarity of your explanation. I. (5 points) In each of the questions below, only one answer is correct. Circle the correct answer. You do not need to show intermediate steps. (There is no extra penalty for making a mistake.) 1. Which of the following matrices is in reduced row echelon form?...
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