MAT1512 Latest exam pack questions and answers and summarized notes for exam preparation. Updated for October November 2023 exams . For assistance Whats-App.0.6.7..1.7.1..1.7.3.9 . All the best on your exams!!
MAT1613 Assignment 3 (COMPLETE ANSWERS) 2024 - DUE 20 September 2024
Summary/Cheat sheet for McGraw-Hill Ryerson Calculus & Advanced Functions
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University of South Africa (Unisa)
Calculus A (MAT1512)
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MAT1512
EXAM PACK
FOR ASSISTANCE WITH THIS MODULE +27 67 171 1739
, 1 MAT1512
January /February 2023
UNIVERSITY EXAMINATIONS
January/February 2023
MAT1512
Calculus A
Examiners:
First: DR Z.I. ALI
Second: MR S. BLOSE
100 Marks
2 Hours
Closed book and online examination, which you have to write within 2 hours
and submit online through the link: https://myexams.unisa.ac.za/portal
Use of a non-programmable pocket 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 attachment documents only as part of your
submission.
Declaration: I have neither given nor received aid on this examination.
Answer All Questions and Submit within the stipulated timeframe.
Late submission will not be accepted.
This paper consists of 4 pages.
ALL CALCULATIONS MUST BE SHOWN.
[TURN OVER]
, 2 MAT1512
January /February 2023
QUESTION 1
(a) Determine the following limits (if they exist):
x 1 2x 1
(i) lim (3)
x 0 3x 4 2 x 4
(ii) lim
x
x 2
xx (3)
1 cos 3 x
(iii) lim (3)
x sin 2 x
sin 2 x
(iv) lim (2)
x 0 sin 3x
3x 2 6
(v) lim (2)
x 5 2x
(vi) lim
x
25x 2
x 5x (3)
(b) Use the Squeeze Theorem to determine the following limit:
x 2 x sin x
lim (3)
x x 2 cos x
(c) Consider the function f given below:
ax if x 1
f x x 2 a b if 1 x 1
bx if 1 x
(i) Determine the one-sided limits lim f x and lim f x . (2)
x 1 x 1
(ii) Find the one-sided limits lim f x and lim f x . (2)
x 1 x 1
(iii) Hence or otherwise determine the numerical values of a and b . (2)
[25]
, 3 MAT1512
January /February 2023
QUESTION 2
(a) Using the first principles of differentiation, find the first derivative of f x 3x 2
2
x
at x 1 . (5)
(b) Find the derivatives of the following functions by using the appropriate rules of
differentiation:
sin x cos x
(i) f x (3)
sin x cos x
(ii) g x e 4 x sin 4 x (3)
2 4
x x
(iii) F x tan t dt and G x t dt (5)
x x2
(c) The curve C has the equation
cos 2 x cos 3 y 1 , x , 0 y
4 4 6
dy
(i) Find in terms of x and y . (4)
dx
(ii) The point P lies on C where x .
6
Find the equation of the tangent to C at P , giving your answer in the form
ax by c 0
where a , b and c are integers. (5)
[25]
QUESTION 3
(a) Determine the following integrals:
x2 4
(i) x 2 dx (2)
sin x
(ii) 2 5 cos xdx (2)
1 cos x
(iii) x sin xdx (2)
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