1. Definition of Summation Notation
If $m$ and $n$ are integers and $m\le n$, then
$$\dsum_{r=m}… Read
Revision Note
1. Definitions
For any real numbers $a$, $b$, $c$ and $d$. Let $z=a+bi$, whe… Read
1. Permutation and Combination
- Factorial For $n$ different objects, if we have a queue of al
1. Radian Measure
- Definition of Radian The measure of an angle subtended at th
2. Properties of Summation Notation
If $k$ is a constant, $m$, $n$ and $p$ are integers and $m \le n … Read
2. The Six Trigonometric Functions
- Definition Let $P(x,y)$ be a point on the rectangular coord
3. Binomial Theorem
If $n$ is a positive integer and $0 \le r \le n$, then
$$\begin… Read
3. Principle of Mathematical Induction
A proposition $P(n)$ is true for all positive integers $n$ (… Read
Addition Law
Let $E$ and $F$ be two events.
\begin{equation*}
P(E\mbox{ … Read
Angles at the Centre
- Equal arcs imply the angles at the centre equal.
Condition:
Angles at the Circumference
- The angle at centre is twice the corresponding angle at circ
Arithmetic Sequences
Let $T(1)$, $T(2)$, …, $T(n)$ be an arithmetic seque… Read
