Conditional Probability
Let $E$ and $F$ be two events.
\begin{equation*}
P(F|E)=\f… Read
Revision Note - Math
Conditions for Congruent Triangles
- Three corresponding sides equal
Condition: $AB=PQ$, $BC=
Conditions for Parallel Lines
- Corresponding angles equal
Condition: $a=b$
Reference: c
Conditions for Parallelogram
- Two pairs of opposite sides equal.
Reference: opp. sides eq
Conditions for Similar Triangles
- Three corresponding angles equal
Condition: $\angle A=\a
Coordinates of the Centroid
For a triangle with vertexes $A(x_1,y_1)$, $B(x_2,y_2)$ a… Read
Cosine Law
\begin{equation*}
a^2=b^2+c^2-2bc\cos A
\end{equation… Read
Cyclic Quadrilateral
- A pair of opposite angles of cyclic quadrilateral are suppl
Direct Variation
If $y \propto x$ (i.e. $y$ varies directly as $x$), then we ha… Read
Discriminant
For quadratic equation $ax^2+bx+c=0$, where $a$, $b$ and $… Read
Distance Formula
For two points $A(x_1,y_1)$ and $B(x_2,y_2)$, the distanc… Read
Division Algorithm
When $f(x)$ is divided by $d(x)$, if the quotient is $Q(x)$ a… Read
Equations of Circle
- Standard form
For a circle $\mathscr{C}$ with centre $(h,k
Equations of Straight Line
- Point slope form
For a straight line $\ell$ with slope $m$ an
Estimations
- Round up
- $12345 \approx 12350$ (rounding up to 4 sig. fig.)
- $
Expectation
For an event with $n$ possible outcomes, each outcome corre… Read
Experimental Probability
Let $E$ be an event in a certain experiment.
\begin{equatio… Read