IB DP Maths: AA SL复习笔记4.1.2 Statistical Measures
Mean, Mode, Median What are the mean, mode and median? Mean, median and mode are measures of central tendency They describe where the centre of the data is They are all types of averages In statist...
IB DP Maths: AA SL复习笔记4.1.1 Sampling & Data Collection
Types of Data What are the different types of data? Qualitative data is data that is usually given in words not numbers to describe something For example: the colour of a teacher's car Quantitativ...
IB DP Maths: AA SL复习笔记3.6.5 Quadratic Trigonometric Equations
Quadratic Trigonometric Equations How are quadratic trigonometric equations solved? A quadratic can give up to two solutions You must consider both solutions to see whether a real value exists Reme...
IB DP Maths: AA SL复习笔记3.6.4 Linear Trigonometric Equations
Trigonometric Equations: sinx = k How are trigonometric equations solved? Trigonometric equations can have an infinite number of solutions For an equation in sin or cos you can add 360° or 2π to ea...
AQA A Level Maths: Mechanics复习笔记2.4.1 Using Calculus in 2D
Using Calculus in 2D How can I use vectors in 2D Kinematics? It is important you understand Calculus in 1D first Also recall the differences between key vector and scalar quantities Displace...
IB DP Maths: AA SL复习笔记3.6.3 Relationship Between Trigonometric Ratios
Relationship Between Trigonometric Ratios What relationships between trigonometric ratios should I know? If you know a value for one trig ratio you can often use this to work out the value for the ...
IB DP Maths: AA SL复习笔记3.6.2 Double Angle Formulae
Double Angle Formulae What are the double angle formulae? The double angle formulae for sine and cosine are: These can be found in the formula booklet You do not need to know how to derive them How...
AQA A Level Maths: Mechanics复习笔记2.3.3 Acceleration due to Gravity
Acceleration due to Gravity What is acceleration due to gravity? If motion is vertical and no other forces are acting on a particle, the acceleration of the particle will be due to gravity A...
IB DP Maths: AA SL复习笔记3.6.1 Simple Identities
Simple Identities What is a trigonometric identity? They are used to help simplify trigonometric equations before solving them Sometimes you may see identities written with the symbol ≡ This means ...
