CS 173: Discrete Structures, Spring 2010
Homework 1
This homework contains 5 problems worth a total of 45 points. It is due on Friday, January
29th at 4pm. The homework dropboxes are towards the east end of the main corridor
of the Siebel basement, between the lounge area and the vending machines. Put your
homework in the box marked with your discussion section.
Be sure that your name and the day/time of your discussion section (e.g. “Monday 12”)
are easy to read at the top of your homework.
1.
[5 points] Demographic survey
Fill out the online demographic survey at
https://illinois.edu/sb/sec/8918245
Your individual answers (which will be kept conﬁdential) will help us advise you
better this term. Summaries of responses from the class as a whole will improve the
CS department’s ongoing curriculum development efforts.
2.
[12 points] Logarithms, Exponents, etc
Simplify the following expressions as much as possible,
without using a calculator
(either hardware or software)
. Do not approximate. Express all rational numbers
as fractions. For complex numbers use
i
to represent the value
√

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 Spring '08
 Erickson
 Summation, Logarithm

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