COS1501
Assignment 1 (QUIZ) 2024
Detailed Solutions, References & Explanations
Unique number: 732357
Due Date: 10 May 2024, 7:00 PM
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, UNISA 2024 COS1501-24-Y Welcome Message Assessment 1
QUIZ
Started on Thursday, 9 May 2024, 6:17 PM
State Finished
Completed on Thursday, 9 May 2024, 6:47 PM
Time taken 30 mins 1 sec
Question 1
Complete
Marked out of 2.00
Which one of the following alternatives is FALSE regarding the number sets Z, Z+, Z≥, Q and R?
a. Z≥ ⊆ Z
b. Z+ ⊆ Z≥
c. R ⊆ Q
d. Z+ ⊆ R
Question 2
Complete
Marked out of 2.00
The set of all non-negative integers x less than 16 such that x2 is an even integer can be described as the set:
(Note: The required set must include as elements all non-negative integers x such that all the requirements for the set are
met.)
a. {x| x ∈ Z≥, x < 16, x2 = 2k for some k ∈ Z}
b. {x| x ∈ Z≥, x < 16, x2 = 2k for some k ∈ Z+}
c. {0, 2, 4, 16, 36, 64, 100, 144, 196}
d. {0, 2, 4}