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Quiz for CMSC 250 - Discrete Structures at Maryland (UMD)

Quiz Information

Material Type:Quiz 8
Professor:Staff
Class:CMSC 250 - Discrete Structures
Subject:Computer Science
University:University of Maryland
Term:--
Keywords:
  • Square Brackets
  • Provided That
  • Combinations
  • Infinite Sets
  • Numeric Value
  • Calculators
  • Cmsc 250 Quiz
  • Total Number
  • Propositional
  • Following Statement
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Sample Document Text

CMSC 250 Quiz #8 ANSWERS Wed., Oct. 23, 2002 Write all answers legibly in the space provided. The number of points possible for each question is indicated in square brackets { the total number of points on the quiz is 30, and you will have exactly 15 minutes to complete this quiz. You may not use calculators, textbooks or any other aids during this quiz. 1. [9 pnts.] Expand each of the following { if there are more than 5 terms, you only need to tell the rst ve terms of each. a. P2i= 1 ii2 ANSWER: 1 12 + 002 + 112 + 222 b. 8k > 0 ak = kk+1 ANSWER: a1 = 12; a2 = 23; a3 = 34; a4 = 45; a5 = 56 c. Q10m=2 r(m+1) ANSWER: r3 r4 r5 r6 r7 2. [9 pnts.] Find the numeric value (or single fraction) of each of the following a. P2i= 2 i3 ANSWER: 23 + 13 + 03 + 13 + 23 = 0 b. Q5j=0(j2) ANSWSER: 02 12 22 32 42 52 = 0 c. P3j=0 jj ANSWER: 00 + 11 + 22 + 33 = 0 + 1 + 4 + 27 = 32 if they assumed 00 = 0 ANSWER: 00 + 11 + 22 + 33 = 1 + 1 + 4 + 27 = 33 if they assumed 00 = 1 ANSWER: 00 + 11 + 22 + 3...

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