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Unformatted text preview: MATH 21 Midterm 1 Spring 2010 Duration: 50 minutes, Material Covered: Stewart 2.1-2.5 Instructions: On the front of your blue/green book print (1) your full name, (2) your student ID number, (3) Math 21, Spring 2010, (4) your discussion section number and instructors name (Devin Green or Lei, Yue), and (5) a grading table. Show all work in your blue/green book and BOX IN YOUR FINAL ANSWERS where appropriate. Start each problem on a new page. No electronic devices are allowed. The lowest possible score on this exam is 0; the highest possible score is 50. Good luck! 1. (10 points: 2 each) Determine the each of the following statements false or always true . No reasoning is needed. Only final answers will be graded. (a) lim x x 2 sin 1 x does not exist because cannot be a denominator. (b) If lim t a f ( t ) = L and lim t a g ( t ) = M , where L and M are finite limits, then lim t a g ( t ) f ( t ) = LM ....
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- Spring '08