WGU C959 Discrete Math
Oxford University (OX)
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WGU C959:DISCRETE MATH EXAMS PACK|GUARANTEED SUCCESS
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WGU C959:DISCRETE MATH EXAMS PACK|GUARANTEED SUCCESS
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WGU C959 - Discrete Math exam questions and answers
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What is the notation for subset? 
⊆ 
 
 
 
A collection of objects is known as a 
set 
 
 
 
What is the notation for integers? 
ℤ 
 
 
 
What is the notation for element? 
∈ 
 
 
 
What is the notation for set-roster? 
{ } 
 
 
 
Write the set-builder notation for, "Numbers whose square roots are an integer" 
{ x | √x ∈ ℤ} 
 
 
 
 
Write the set-builder notation for "the set of all x's, such that x is greater than 0" 
 
{ x | x > 0} 
 
 
 
T/F: 
Order matters in ordered pair...
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C959 Discrete Math I| 305 questions and answers.
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Form 
When an argument has been translated from English using symbols 
 
 
 
Invalid 
Describes an argument when the conclusion is false in a situation with all the hypotheses are are true 
 
 
 
Valid 
Describes an argument when the conclusion is true whenever the hypotheses are all true 
 
 
 
Conclusion 
The final proposition 
 
 
 
Hypothesis 
Each of the propositions within an argument 
 
 
 
Argument 
Sequence of propositions 
 
 
 
Two Player Game 
In reasoning whether a quantified statem...
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discrete math 1 wgu questions and answers
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Set Difference 
A - B, the set containing those elements that are in A but not in B 
 
 
 
Set Symmetric Difference 
A ⊕ B: the set of elements that are a member of exactly one of A and B, but not both. 
 
An alternative definition of the symmetric difference operation is: 
A ⊕ B = ( A - B ) ∪ ( B - A ) 
 
 
 
Set Complement 
the set of all elements in U that are not elements of A. 
 
An alternative definition of A is U - A. 
 
 
 
Set Intersection 
A ∩ B: the resulting set that contains...
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C959 WGU unit 1 questions with 100% correct answers.
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p∧q 
conjunction 
"and" 
 
T/T=T 
T/F=F 
F/T=F 
F/F=F 
 
 
 
p∨q 
disjunction/inclusive or 
"or" 
 
T/T=T 
T/F=T 
F/T=T 
F/F=F 
 
 
 
p⊕q 
exclusive or 
"or" 
 
T/T=F 
T/F=T 
F/T=T 
F/F=F 
 
 
 
¬p 
negation 
"not" 
 
¬T = F 
¬F = T 
 
 
 
p→q 
conditional operation 
"if p then q" 
 
T/T=T 
T/F=F 
F/T=T (p=F, q=T regardless of truth value) 
F/F=T 
 
 
 
converse of p→q 
q→p 
 
 
 
contrapositive of p→q 
¬q→¬p 
 
 
 
inverse of p→q 
¬p→¬q 
 
 
 
p↔q 
bicondi...
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C959 WGU unit 3 questions and answers.
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boolean complement 
denoted with bar symbol 
reverses elements value 
 
(bar over)0=1 
(bar over)1=0 
 
 
 
boolean addition 
0+0=0 
0+1=1 
1+0=1 
1+1=1 
 
 
 
boolean multiplication 
0×0=0 
0×1=0 
1×0=0 
1×1=1 
 
 
 
⊕ 
exclusive or 
XOR 
 
outputs 1 only when inputs are different 
 
0⊕0=0 
1⊕0=1 
0⊕1=1 
1⊕1=0 
 
 
 
idempotent of boolean 
x+x=? 
x*x=? 
x+x=x 
 
x*x=x 
 
 
 
associative of boolean 
(x+y)+z=? 
(xy)z=? 
(x+y)+z=x+(y+z) 
 
(xy)z=x(yz) 
 
 
 
commutative of boolean 
x...
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C959 Discrete Math 1 questions with 100% correct answers
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Set Difference 
A - B, the set containing those elements that are in A but not in B 
 
 
 
Set Symmetric Difference 
A ⊕ B: the set of elements that are a member of exactly one of A and B, but not both. 
 
An alternative definition of the symmetric difference operation is: 
A ⊕ B = ( A - B ) ∪ ( B - A ) 
 
 
 
Set Complement 
the set of all elements in U that are not elements of A. 
 
An alternative definition of A is U - A. 
 
 
 
Set Intersection 
A ∩ B: the resulting set that contains...
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C959 Flashcards (Master set) questions and answers.
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C959 Flashcards (Master set) questions and answers.
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C959 Unit 1 Logic and Proofs B questions and answers.
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Tautology 
Compound proposition that is always true regardless of the truth value of individual propositions (Always ends up true) 
 
 
 
Contradiction 
Compound proposition that is always false regardless of the truth value of individual propositions (Always ends up false) 
 
 
 
Logical Equivalence 
When two different compound propositions have the same results for inputs 
 
 
 
Idempotent 
Propositional Law: PvP = P, P^P = P ('^' represents And) 
 
 
 
Associative 
Propositional Law: (PvQ)v...
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C959 WGU unit 4 questions with 100% correct answers
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diagonal matrix 
square matrix which all non-diagonal entries are 0 
 
diagonal entries can be 0 
 
 
 
identity matrix 
diagonal matrix which all entries along main diagonal is 1, all other entries = 0 
 
 
 
can different sized matrices be added? 
no 
 
 
 
matrix addition 
 
[3|-4] + [-2|8] 
[1|0] + [-5|-3] 
= 
[3+-2|-4+8] 
[1+-5|0+-3] 
 
= 
[1|4] 
[-4|-3] 
 
 
 
scalar 
refers to real numbers 
 
ex_ 3, -5.1, π 
 
 
 
scalar multiple 
each entry is multiplied by scalar 
 
 
 
multiplying mat...
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