AT course eaination uestionnser booet
2020/59025
ATAR course examination, 2020
Question/Answer booklet
MATHEMATICS
SPECIALIST
Place one of your candidate identification labels in this box.
Ensure the label is straight and within the lines of this box.
Section Two:
Calculator-assumed
WA student number:
In figures
In words
Time allowed for this section
Reading time before commencing work:
Working time:
ten minutes
one hundred minutes
Number of additional
answer booklets used
(if applicable):
Materials required/recommended for this section
To be provided by the supervisor
This Question/Answer booklet
Formula sheet (retained from Section One)
To be provided by the candidate
Standard items: pens (blue/black preferred), pencils (including coloured), sharpener,
correction fluid/tape, eraser, ruler, highlighters
Special items:
drawing instruments, templates, notes on two unfolded sheets of A4 paper,
and up to three calculators, which can include scientific, graphic and
Computer Algebra System (CAS) calculators, are permitted in this ATAR
course examination
Important note to candidates
No other items may be taken into the examination room. It is your responsibility to ensure that
you do not have any unauthorised material. If you have any unauthorised material with you, hand
it to the supervisor before reading any further.
Copyright ? School Curriculum and Standards Authority 2020
Ref: 20-053
*MAS-S2*
MAS-S2
MATHEMATICS SPECIALIST
2
CALCULATOR-ASSUMED
Number of
questions
available
Number of
questions to
be answered
Working
time
(minutes)
Marks
available
Percentage
of
examination
Section One:
Calculator-free
8
8
50
49
35
Section Two:
Calculator-assumed
13
13
100
86
65
Total
100
Section
Instructions to candidates
1.
The rules for the conduct of the Western Australian external examinations are detailed in
the Year 12 Information Handbook 2020: Part II Examinations. Sitting this examination
implies that you agree to abide by these rules.
2.
Write your answers in this Question/Answer booklet preferably using a blue/black pen.
Do not use erasable or gel pens.
3.
You must be careful to confine your answers to the specific questions asked and to follow
any instructions that are specific to a particular question.
4.
Show all your working clearly. Your working should be in sufficient detail to allow your
answers to be checked readily and for marks to be awarded for reasoning. Incorrect
answers given without supporting reasoning cannot be allocated any marks. For any
question or part question worth more than two marks, valid working or justification is
required to receive full marks. If you repeat any question, ensure that you cancel the
answer you do not wish to have marked.
5.
It is recommended that you do not use pencil, except in diagrams.
6.
Supplementary pages for planning/continuing your answers to questions are provided at
the end of this Question/Answer booklet. If you use these pages to continue an answer,
indicate at the original answer where the answer is continued, i.e. give the page number.
7.
The Formula sheet is not to be handed in with your Question/Answer booklet.
See next page
DO NOT WRITE IN THIS AREA AS IT WILL BE CUT OFF
Structure of this paper
CALCULATOR-ASSUMED
3
MATHEMATICS SPECIALIST
Section Two: Calculator-assumed
65% (86 Marks)
This section has 13 questions. Answer all questions. Write your answers in the spaces provided.
Supplementary pages for planning/continuing your answers to questions are provided at the end
of this Question/Answer booklet. If you use these pages to continue an answer, indicate at the
original answer where the answer is continued, i.e. give the page number.
Working time: 100 minutes.
Question 9
(4 marks)
y
DO NOT WRITE IN THIS AREA AS IT WILL BE CUT OFF
The shape of a small wine glass is modelled by revolving the curve sin
? = x ¨C 3 about the
y axis, where 0 ¡Ü y ¡Ü 6. All dimensions are in centimetres.
y
6
4
2
¨C5
5
x
Calculate, correct to the nearest 0.01 cm, the depth of wine in the glass if it is to contain 80% of
its maximum volume.
See next page
MATHEMATICS SPECIALIST
4
Question 10
(a)
CALCULATOR-ASSUMED
(7 marks)
The sketch of the locus of a complex number z has been shown below. Write equations
or inequalities in terms of z (without using x = Re(z) or y = Im(z)) for the indicated locus.
(4 marks)
Im
5
4
3
1
¨C1
1
2
3
4
Re
¨C1
¨C2
(b)
Sketch the locus of the equation |z + 2| = |z ¨C i| + ¡Ì 5 in the Argand diagram below.
(3 marks)
Im
4
3
2
1
¨C3
¨C2
¨C1
¨C1
1
2
3
Re
¨C2
¨C3
See next page
DO NOT WRITE IN THIS AREA AS IT WILL BE CUT OFF
2
CALCULATOR-ASSUMED
5
Question 11
MATHEMATICS SPECIALIST
(5 marks)
Let z, w and u be complex numbers where:
w = (1 + i) z
u=
Arg (w) =
?
3
|w| = 2
z
2 ¨C 2i
DO NOT WRITE IN THIS AREA AS IT WILL BE CUT OFF
(a)
Determine Arg (u) exactly.
(3 marks)
(b)
Determine |u| exactly.
(2 marks)
See next page
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