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math17midtermexamreviewjamie-110114180123-phpapp01

# math17midtermexamreviewjamie-110114180123-phpapp01 -...

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Diliman Learning Resource Center Mathematics 17 Midterm Exam Review Second Semester AY 2010-2011 January 17, 2011, Monday General Directions. Do as indicated. Write your answers clearly and legibly. Show your complete solutions, if necessary, and box your final answer. Use black or blue ink only. Answer as many problems as you can. Good luck! I. Simplify the following expressions. 1. 64a 3 b 2 c 5 a 7 bc 1 8a 12 b 9 c 27 a 6 b 3 c 3 1 3 2. x 3 y 3 x 3 y 3 1 2y x y 1 2xy x 2 xy y 2 II. Do the following as indicated. 1. TRUE or FALSE. The set { bi | b ∈ℝ and i = 1 } is closed under multiplication. 2. TRUE or FLASE. For any real numbers a and b that are not zero, if a 2 ab then a b 3. TRUE or FALSE. The set S = { x , y | x =∣ y } denotes a function. 4. Determine the equation of a line perpendicular to x - 2y = 4 and passing through the midpoint of (4,7) and (-8,3).
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