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CIS1910 Discrete Structures in Computing (I)
Winter 2013, Solutions to Assignment 2
PART A
1. These two binary operations are used to define the set C of complex numbers.
Let (a,b), (c,d) and (e,f) be three elements of R2.
(a) We have: (a,b) (c,d) = (
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CIS1910 Discrete Structures in Computing (I)
Winter 2013, Solutions to Assignment 4
QUESTION A.
1. (a) The domain of definition of f is the set of all the elements x
of the domain R such that (x1)/(2x+1) belongs to the codomain R.
It is cfw_xR | (x1)/
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CIS1910 Discrete Structures in Computing (I)
Winter 2013, Solutions to Midterm
To simplify the task of marking, Q1 was marked out of 18, Q2 out of 7.5, Q3 out of 10.5,
Q4 out of 13.5 (plus 3 bonus marks for question 2c), Q5 out of 12 (plus 3 bonus mar
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CIS1910 Discrete Structures in Computing (I)
Winter 2013, Solutions to Assignment 1
PART A
1. Possible answers are (a) S=cfw_1,2 (b) S=cfw_2,3 (c) S=cfw_2,cfw_3 (d) S=cfw_3,cfw_3.
For example, the elements of S=cfw_2,cfw_3 are 2 and cfw_3,
i.e., 3 doe
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CIS1910 Discrete Structures in Computing (I)
Winter 2013, Solutions to Assignment 3
A. Rules of Inference
1) Let r be the proposition it rains, let f be the proposition it is foggy, let s be the proposition
the sailing race will be held, let l be the