Timothy Gan

Timothy Gan

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.

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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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N2015 P1 Q9

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

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2022 CJC Promo Q9

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

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NJC Vectors Tutorial Q6

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

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2008 SAJC Promo

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

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2009 NJC P1 Q7

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

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SAJC Functions Tutorial Q11

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

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ASRJC Binomial Distribution Tutorial Q12

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

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2006 MJC Promo

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

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