AQA Level 3 Technical Level IT: PROGRAMMING Unit 5 Mathematics For Programmers |with Mark Scheme

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Level 3 Technical Level
IT: PROGRAMMING
Unit 5 Mathematics For Programmers
Tuesday 21 May 2019 Afternoon Time allowed: 2 hours
Materials
For this paper you must have:
For Examiner’s Use
 a ruler
 a scientific calculator (non-programmable) Question Mark
 stencils or other drawing equipment (eg flowchart stencils). 1−5
Instructions 6
 Use black ink or black ball-point pen.
7
 Fill in the boxes at the top of this page.
 Answer all questions. 8
 You must answer the questions in the spaces provided. Do not write outside 9
the box around each page or on blank pages. 10
 Do all rough work in this book. Cross through any work you do not want to
11
be marked.
 If you need more space use the additional pages at the back of this booklet. 12
 Include units in all answers, where required, as marks are given for units in 13
some questions.
14
Information 15
 The marks for questions are shown in brackets.
16
 The maximum mark for this paper is 80.
 There are 50 marks in Section A and 30 marks in Section B. Both sections 17
should be attempted. TOTAL
Advice
 In all calculations, show clearly how you work out your answer.
 Use diagrams, where appropriate, to clarify your answers.
 You are expected to use a calculator where appropriate.
 You are reminded of the need for good English and clear presentation in your answers.




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, 2

Do not write
outside the
Section A box


Answer all questions in this section.



0 1 The result of the logical operation 10001100 AND 01100111 is

Tick () one box.
[1 mark]


00000100


01100100


01111100


11101111



0 2 De Morgan’s law converts A AND B into:

Tick () one box.
[1 mark]

A OR B


A OR B


A OR B


A OR B




*02*
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, 3
Do not write
outside the
0 3 If box

1
f(x) = x2 and g(y) =
y
then g(f(x)) is equal to

Tick () one box.
[1 mark]

1
x2


x2


x2
y

y
x2




Turn over for the next question




Turn over ►


*03*
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, 4
Do not write
outside the
0 4 Figure 1 shows a Venn diagram. box



Figure 1




What is A ∩ B?

Tick () one box.
[1 mark]


{}


{7, 11}


{1, 5, 6}


{1, 2, 4, 5, 6, 9}




*04*
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