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UNIVERSITY EXAMINATIONS UNIVERSITEITSEKSAMENS
university
of south africa
October/November 2024
MAT1501 -FUNDAMENTAL MATHEMATICS
Duration : 3 Hours 100 Marks
EXAMINERS :
FIRST : PROF AR ADEM
SECOND : MR TW SEKGOBELA
EXTERNAL : PROF B MUATJETJEJA
Closed book and online examination, which you have to write within 3 hours and submit online.
Use of any calculator is NOT allowed.
This web based examination remains the property of the University of South Africa and may not be distributed
from the Unisa platform.
This examination allows typed in text and/or attached documents as part of your submission.
Save frequently while working.
Declaration: I have neither given nor received aid on this examination.
The examination will take place on the Online Assessment tool located in your module examination site on
myModules in myUnisa.
Once you finish click on the submit for grading button to submit your exam
This examination question paper consists of 6 pages.
Answer All Questions and Submit within the stipulated timeframe.
Late submission will not be accepted.
This paper consists of 6 pages.
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QUESTION 1
Suppose A = {x ∈ R : x > −3} and B = (−4; 5].
(a) Sketch each of A and B on separate number lines. (1)
(b) Write A ∪ B in set builder notation. (1)
(c) Sketch A ∪ B on a separate number line. (1)
(d) Write A ∩ B in set builder notation. (1)
(e) Write A ∩ B on a separate number line. (1)
[5]
QUESTION 2
The sketch shows a circle, a parabola, which is the graph of f , and a straight line, which is the graph of g. The
parabola has xintercepts -2 and 6, and y-intercept 6. Its turning point is C. The circle has its centre at the origin
and it passes through the point A, which has coordinates (−2, 0). At point B both the circle and the straight line
cut the x-axis. The straight line has y-intercept 1.
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(a) What are the coordinates of B? (1)
(b) What is the equation of g (2)
(c) Write down the equation of the line that is perpendicular to the graph of g and passes through B. (2)
(d) Find the equation that defines f . (2)
(e) Show that C has coordinates (2, 8). (1)
(f ) What is the distance between A and C? (1)
(g) Find the midpoint D of AC: (1)
(h) Write down the equation of the circle that has AC as diameter. (2)
(i) Find the maximum vertical distance between the graphs of f and g on the interval x ∈ [0, 6]. (2)
[14]
QUESTION 3
(a) Obtain the sum of the series 8 + 11 + 14 + · · · + 56. (2)
(b) A geometric sequence of positive terms has first term 2, and the sum of the first three terms is 266. (3)
Calculate the common ratio.
(c) An arithmetic sequence, A, has first term a and common difference 2, and a geometric sequence, B, has (3)
first term a and common ratio 2. The first four terms of each sequence have the same sum. Obtain the
value of a.
[8]
QUESTION 4
Evaluate the following limits:
3
(a) lim sin(x2 ) + x 3ex + 6 (2)
x→2
p
(b) lim u3 + 3u4 + 6 + cos(u) (2)
u→π
x2 − 4
(c) Let f (x) =
|x − 2|
(i) Find lim− f (x). (3)
x→2
(ii) Find lim f (x). (2)
x→2+
(iii) Discuss lim f (x). (3)
x→2
[12]
[TURN OVER]
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