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Unformatted text preview: PRACTICE EXAM # 2 MA 225 B1 THE ACTUAL TEST WILL BE SHORTER. THE SAMPLES HERE ARE INTENDED TO GIVE YOU PRACTICE ON EACH TYPE OF QUESTION THAT MAY APPEAR ON THE ACTUAL TEST: THERE MAY BE TWO QUESTIONS OF A GIVEN TYPE ON THE TEST, OR NONE. Calculators are permitted but should not be necessary. No books or notes are permitted. The Date of the Exam is Tuesday October 23, 2007, The Room is COM 101 . You will have 80 minutes (12:301:50). Solutions to the in-class exam will be posted on reserve in the library. Exams will be returned graded Tuesday, October 30, at the end of the lecture and grades posted in CourseInfo. TYPE I Limits and Continuity: A problem like 11.2.7 or 11.2.21 or 11.2.27 or 11.2.31. TYPE II 1. If z = f ( x,y ), where x = r cos ,y = r sin , find: (a) z/r (b) z/ (c) 2 z/r . 2. The height of a cylinder is 2 cm, and is increasing at a rate of 1 cm/s. The volume of the cylinder is 8 cm 3 and is increasing at a rate of 9 cm 3 /s. At what rate is the radius of the base of the cylinder increasing?...
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This note was uploaded on 04/07/2008 for the course MA 225 taught by Professor Previato during the Fall '07 term at BU.
- Fall '07