### 2015 HCI P1 Q3

2015 HCI P1 Q3 A tunnel is built to facilitate the transportation of goods by trains between Country $text{X}$ and Country $text{Y}$. Due to differences in the rail systems between

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# Timothy Gan

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Timothy Gan

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2015 HCI P1 Q3

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N2015 P1 Q9

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2022 CJC Promo Q9

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NJC Vectors Tutorial Q6

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ACJC Binomial Distribution Assignment Q1

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2008 SAJC Promo

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2009 NJC P1 Q7

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SAJC Functions Tutorial Q11

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ASRJC Binomial Distribution Tutorial Q12

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2006 MJC Promo

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This is Tim. Tim loves to teach math. Tim seeks to improve his teaching incessantly! Help Tim by telling him how he can do better.

Timothy Gan
30th April 2024

2015 HCI P1 Q3 A tunnel is built to facilitate the transportation of goods by trains between Country $text{X}$ and Country $text{Y}$. Due to differences in the rail systems between

Timothy Gan
30th April 2024

These Ten-Year-Series (TYS) worked solutions with video explanations for 2015 A Level H2 Mathematics Paper 1 Question 9 are suggested by Mr Gan. For any comments or suggestions please contact

Timothy Gan
29th April 2024

2022 CJC Promo Q9 Relative to origin $O$, the position vectors of points $A$, $B$ and $C$ are $mathbf{a}$, $mathbf{b}$ and $mathbf{c}$ respectively, where $mathbf{b}$is a unit vector. It is

Timothy Gan
29th April 2024

NJC Vectors Tutorial Q6 Referred to the origin $O$, the points $A$ and $B$ are such that $overrightarrow{OA}=mathbf{a}$ and $overrightarrow{OB}=mathbf{b}$ where $mathbf{a}$ and $mathbf{b}$ are non-parallel vectors. It is also

Timothy Gan
29th April 2024

ACJC Binomial Distribution Assignment Q1 Batteries are packed in boxes of $200$, and on average $0.5%$ of all batteries are defective. (i) A box which contains one or more defective

Timothy Gan
27th April 2024

2008 SAJC Promo The perimeter of an isosceles triangle of base length $x$ cm and two sides of equal length $y$ cm each is $12$ cm. Show that its area

Timothy Gan
27th April 2024

2009 NJC P1 Q7 In a triangle $ABC$, $AB=3$ cm and $AC=2$ cm. If angle $BAC$ is increasing at a constant rate of $0.1$ radians per second, find the rate

Timothy Gan
27th April 2024

SAJC Functions Tutorial Q11 The functions $text{f}$ and $text{g}$ are defined as follows $text{f}:xmapsto sin x$, $xin mathbb{R}$, $-pi le xle 2pi $.$text{g}:xmapsto cos x$, $xin mathbb{R}$, $0le xle 2pi

Timothy Gan
26th April 2024

ASRJC Binomial Distribution Tutorial Q12 A biscuit factory produces biscuits which are packed into its signature gift boxes. On average, $3%$ of these gift boxes packed are substandard. (i) Show

Timothy Gan
26th April 2024

2006 MJC Promo The function $text{f}$ is defined by $text{f}:xmapsto ln left( {{x}^{2}}-x-2 right)$, $c<x<d$, where $c<d<0$. (a) Find the values of $c$ and $d$ such that the range of