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Teaching and Learning - Mathematics is Fun! - Additional Maths is Additional Fun ! - Pure Maths is Pure Fun!	You may use any part of the files in this site for teaching or learning purposes, and for non-commercial use. Q.C.Past Papers	Yellow Dragon Articles 1985 An Extension of Extended Partial Fraction Theorem 1986 Vandermondedeterminant with higher degree 2007 Simply Logic and Numbers 2008 When vectors shoot at the Centres of a Triangle 2009 Cream Cake Fight	QC APM
Easier	Intermediate	Harder	QC APM
Signs of complete square	Factorization using cross multiplication method	Mistake in a Vector Problem	Old Master Q's Wonderful Journey
Pirates of the Caribbean	Positive Roots of Quadratic Equations	If or only if
A question on Straight line	A Trigonometry Mistake	A divisibility problem
A small infinite geometric series problem	Mathematical Induction	The optimal bond angle of Methane
Illegal Operation Fun	Mistake in a Vector Problem	Difference method for some finite algebraic series
Binary, Quaternary, Octary, Denary and Hexadecimal number systems	A mistake in finding min. in quadratic function	A harder quadratic problem
Using completing square to simplify surds	Disappeared circle	A good series
Surd equations	A small problem in probability	Harder applications in Heron's formula
Geometric construction of square root of a positive integer	Cowboy Probability	Complex locus of a circle
	Quotient Rule Song	A Hyperbola in complex plane ?
	Discussion on two small problems in A. Math. Mock Exam , 2009	A small determinant problem
	Use Limit to find the area and circumference of a circle	Matrix Quiz
	Some harder examples of subsidiary angle form in trigonometry	Discussions on a Mathematical Induction problem
	Elementary Techniques in differentiation from the First Principle	Points of inflection
	Harder area problems	An area problem revisited
	Solve a sin x +b cos x = c	Birthday Paradox　 (excel)
	Using quadratics to find the range of some rational functions
	A probability worksheet