## Quiz Information

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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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