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CXLatest Additions
8182Complex Numbers : Loci : Exam Question
8162Continuous Random Variables : Probability density functions : Exam Question
8155Coordinate geometry : Circles : Exam Question
8134Coordinate geometry : Tangents and normals : Exam Question
8128Continuous Random Variables : Expectation theory : Exam Question
4908Complex Numbers and Quadratic Equations : Complex numbers : Exam Question
4882Constructions : Tangent to a circle from a point outside it : Midpoint 1
2631Constructions : Equilateral triangles : Midpoint 1
2031Constructions : 60, 90, 45 degree angles : Midpoint 1
34Coordinate Geometry : Plotting points : Squares 2
33Coordinate Geometry : Cartesian plane : Squares 2
8093Coordinate geometry : Straight lines : Exam Question
8091Coordinate geometry : Circles : Exam Question
8088Coordinate geometry : Straight lines : Exam Question
8082Coordinate Geometry : Circles - geometry : Exam Question
O-test 2
The rule 1
The rule 2
Various functions
Negative powers 1
Negative powers 2
Example 1
Example 2
Example 3
Example 4
O-test 1
O-test 3
O-test 4
O-test 1
Investigate gradient
Curves
Example 1
Example 2
Example 3
Example 4
O-test 2
Distance/time graphs
Definitions
Example 1
Example 2
Example 3
Example 4
Example 5
O-test 1
O-test 2
Example 1
Tangents 5
Tangents 4
Tangents 3
Tangents 1
Tangents 2
Normals 1
Normals 2
O-test 1
O-test 2
O-test 3
O-test 4
O-test 5
Vocabulary O-test
Definitions 1
Definitions 2
Definitions 3
Definitions 4
Example 1
Example 2
Example 3
Example 4
Example 5
Example 6
Example 7
Example 8
Example 9
Example 10
Example 11
Example 12
Example 13
Example 14
O-test 1
O-test 2
O-test 3
A cone
A funnel
A hemisphere
A quadratic
An exponential
O-test
Exam O-test
Randomised Exam Q 2006
Randomised Exam Q 2007
Randomised Exam Q 2008
Particles 6
Particles 5
Particles 4
Particles 3
Particles
Rods 2
Rods
Particles 2
Particles 7
O-test 1
Composite bodies 2
Composite bodies 3
Rods
Laminas 2
Parallelograms
Triangles 3
Triangles 2
Semicircles
Composite bodies
Composite bodies 4
O-test 2
Lamina with hole
Lamina with hole 2
Plate and weights
Plate and weights 2
Randomised Exam Q 2005
Randomised Exam Q 2006
Randomised Exam Q 2007
Randomised Exam Q 2007
Randomised Exam Q 2010
Randomised Exam Q 2014
Using integration 1
Using integration 2
Using integration 3
Using integration 4
Using integration 5
Using integration 6
Simplified version
Simplified version 2
O-test
Randomised Exam Q 2007
Randomised Exam Q 2007
Randomised Exam Q 2007
Randomised Exam Q 2008
Investigate
Example
Example 2
A cone
A funnel
A sphere
About the y-axis
Example 11
Example 5
Example 4
Example 3
O-test 4
O-test 3
O-test 2
O-test 1
How to use...
Example 2
Example 1
Example 6
Example 7
Example 8
Example 9
Example 10
Example 12
Example 13
Example 14
Example 15
Example 16
Example 17
Example 18
Example 19
Example 20
Example 21
Example 22
Example 23
Example 24
Example 25
Example 26
Example 27*
Example 28*
Example 29
O-test 5
O-test 1
Arc length 1
Arc length 2
Sector area 1
Sector area 2
Segments 1
Example 1
Example 2
O-test 2
Perimeter and area
Example 1
Example 2
Angle at the centre - proof
Angle in a semicircle - proof
Angles in same segment - proof
Cyclic quadrilaterals - proof
Spot the Mistake 1
Spot the Mistake 2
Spot the Mistake 3
O-test 1
O-test 2
Angle in a semicircle
Angles in the same segment
Angle at the centre
Cyclic quadrilaterals
Alternate segment
Angle between tangent and radius
Tangents from a point
Perpendicular to a chord
Questions and responses
Example 1
Example 2
Example 3
Example 4
Example 5
Example 6
Example 7
Example 8
How to...
Example 1
Example 3*
Example 2
Example 4
Example 5
Example 6
Example 7
Exam O-test
O-test 1
O-test 2
O-test 3
O-test 4
O-test 5
Data Handling Cycle O-test
O-test
Conservation of momentum
Basic simulation
Momentum and impulse
Cricket ball
Two balls of putty
Randomised Exam Q 2006
Randomised Exam Q 2010
Smooth surfaces
Elastic and inelastic collisions
Example 1
Example 2
Restitution simulation
Example 3
Coefficient of restitution
Coefficient of restitution 2
Bouncing simulation
Impact with a fixed surface
A bouncing ball
A bouncing ball 2
O-test
Randomised Exam Q 2007
Randomised Exam Q 2008
Randomised Exam Q 2008
Randomised Exam Q 2010
Simulation
Simulation 2
Poisson distributions
Combining normal distributions
Combining normal distributions 2
Probabilities
Probabilities 2
Probabilities 3
Probabilities 4
O-test 1
Temperature
Bottles of wine
Exam time
Box
Batteries
Cherry cakes
Vending machine
Sheets of paper 1
Rods and tubes
Sheets of paper 2
Mean mass
Poisson probabilities
Motorway traffic
Football scores
O-test 2
Exam O-test
Exam O-test
Randomised Exam Q 2000
Randomised Exam Q 2000
Randomised Exam Q 2000
Randomised Exam Q 2000
Randomised Exam Q 2002
Randomised Exam Q 2006
Randomised Exam Q 2007
Randomised Exam Q 2008
Randomised Exam Q 2008
Graphing X+Y
Graphing X-Y
Graphing aX
Graphing aX+bY
Graphing aX-bY
Summary
Definitions
Modulus and argument
Modulus and argument 2
Modulus and argument 3
O-test 1
O-test 2
Addition
Subtraction
Product
Quotient
O-test 3
Randomised Exam Q 2002
Randomised Exam Q 2002
Randomised Exam Q 2005
Randomised Exam Q 2006
Randomised Exam Q 2007
Randomised Exam Q 2007
Randomised Exam Q 2008
Randomised Exam Q 2008
Randomised Exam Q 2008
Randomised Exam Q 2009
Randomised Exam Q 2009
Randomised Exam Q 2009
Randomised Exam Q 2014
Division
Imaginary numbers
Subtraction
Sum
Product
Complex conjugate
Calculations
More calculations
O-test
Simplifying expressions
Modulus properties
Sequence O-test
Matching O-test
Properties of conjugates
Properties 2
Properties 3
Properties 4
Properties 5
Modulus and conjugate
Calculations on a GDC
Exam O-test 1
Exam O-test 2
Exam O-test
Exam timed O-test
Randomised Exam Q 2003
Randomised Exam Q 2007
Randomised Exam Q 2007
Randomised Exam Q 2008
Randomised Exam Q 2008
Randomised Exam Q 2008
Randomised Exam Q 2008
Randomised Exam Q 2009
Square roots
Introduction
Real and imaginary parts
Real and imaginary 2
Real and imaginary 3
Quadratic equations
Conjugate roots
Conjugate roots 2
Cubics & conjugate roots
Cubics & conjugate roots 2
Higher powers
Cubic equations
Cubic equations 2
Quartic equations
Exam O-test 1
Exam O-test 2
Exam O-test 3
Exam O-test 4
Exam timed O-test
Randomised Exam Q 2000
Randomised Exam Q 2000
Randomised Exam Q 2000
Randomised Exam Q 2002
Randomised Exam Q 2002
Randomised Exam Q 2006
Randomised Exam Q 2006
Randomised Exam Q 2007
Randomised Exam Q 2008
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Randomised Exam Q 2010
Randomised Exam Q 2010
Randomised Exam Q 2014
Roots
Polar form
Polar form 2
Polar form 3
Properties of polar form
De Moivre's theorem
Trig identities
Trig identities 2
Trig identities 3
Powers
Roots 2
nth roots
nth roots of unity
O-test
Randomised Exam Q 2008
Definition
A proof
More proofs
Logarithms
Straight line 4
Straight line 5
Straight line 6
Transformations of the circle
Randomised Exam Q 2008
Randomised Exam Q 2008
Randomised Exam Q 2015
Xtra 2
Xtra 1
The Mandelbrot set videos
The Mandelbrot set
The Mandelbrot process
Randomised Exam Question
Silver
Steel
Gold
Iron
Bricks
Example 1
Example 2
Example 3
Example 4
Example 5
Example 6
Example 7
O-test 1
O-test 2
Exam O-test 1
Exam O-test 2
Example 1
Perpendicular bisector 2
Equilateral triangle 1
Square
Triangle
Equilateral triangle 2
Perpendicular bisector 1
Midpoint 1
Midpoint 2
Parallelogram
Trapezium
Rhombus
Circumcircle
Perpendicular from a point on a line
Perpendicular from a point to a line
A regular hexagon
Bisector of a given angle
90_DEG_ angle
45_DEG_ angle
60_DEG_ angle
30_DEG_ angle
Ordering O-test 1
Ordering O-test 2
Ordering O-test 3
Ordering O-test 4
Ordering O-test 5
Equal distances
Fixed distance from a point
Region bounded by circle
Equal distance from 2 points
Equal distance from 2 lines
Dog on a lead
O-test 1
Midpoint 1
Midpoint 1
Midpoint 1
To the Binomial 3
To the Binomial 2
To the Poisson
Boys and girls
Tetrahedral die
Coins
To the Poisson 2
Checkout queues
O-test 1
Typing errors
O-test 2
Telephone exchange
Emails
Accidents
Newspaper errors
Compare the distributions
Continuity correction
Exam O-test
Randomised Exam Q 2000
Randomised Exam Q 2000
Randomised Exam Q 2000
Randomised Exam Q 2002
Randomised Exam Q 2003
Randomised Exam Q 2007
Randomised Exam Q 2008
Randomised Exam Q 2008
Definition
Expectation
Mean and variance
Probabilities
Visualise Continuous Uniform Dist.
Probabilities 2
Using calculus
A piece of string
Find the distribution
Exam O-test
Randomised Exam Q 2000
Randomised Exam Q 2000
Randomised Exam Q 2003
Randomised Exam Q 2004
Randomised Exam Q 2006
Randomised Exam Q 2006
Randomised Exam Q 2007
Randomised Exam Q 2009
Find F(x) 1
Find F(x) 2
Find F(x) 3
Find F(x) 4
Find the pdf
Exam O-test 1
Randomised Exam Q 2000
Randomised Exam Q 2000
Randomised Exam Q 2000
Randomised Exam Q 2003
Randomised Exam Q 2003
Randomised Exam Q 2006
Randomised Exam Q 2008
Randomised Exam Q 2008
Randomised Exam Q 2008
Expectation of a function of X
Expectation of a function of X 2
Expectation of a function of X 3
Expectation of a function of X 4
Variance of a function of X
Variance of a function of X 2
Variance of a function of X 3
Variance of a function of X 4
Exam O-test 2
Randomised Exam Q 2009
Randomised Exam Q 2014
Calculate probabilities 3
Visualise a(x + b) Pdf
Visualise a(b - x) Pdf
Visualise Quadratic Pdf
Visualise Simple Cubic Pdf
Visualise Composite Pdf
Verify a PDF
Verify a PDF 2
Calculate probabilities 2
Calculate probabilities
Mean
Mean 2
Mean 3
Mean 4
Variance
Variance 2
PDFs using a GDC
O-test
Randomised Exam Q 2000
Randomised Exam Q 2015
Calculate the median 4
Calculate the median 3
Find the median using a GDC
Calculate the median 2
Calculate the median
Visualise the median
Visualise the median 2
Visualise the median 3
O-test
Randomised Exam Q 2008
Calculate the mode
Visualise the mode
Calculate the mode 2
Calculate the quartiles
Visualise the quartiles
Visualise the quartiles 2
Visualise the quartiles 3
What happens to y?
What happens to y? 2
Example 1
Asymptotes of y=a/(x-b)
Asymptotes of y=(ax+b)/((x-c)(x-d))
Sloping asymptotes 2
Sloping asymptotes
Finding asymptotes
Finding asymptotes 2
Finding asymptotes 3
Finding asymptotes 4
Approaching asymptotes
Asymptotes of a hyperbola
Exam O-test
Exam O-test
Randomised Exam Q 2008
Randomised Exam Q 2008
Randomised Exam Q 2008
Randomised Exam Q 2008
Randomised Exam Q 2008
Randomised Exam Q 2008
Squares 2
O-test 1
Introduction
Centred at the origin 1
Centred at the origin 2
Angle in a semicircle
Centred at the origin 3
Centred anywhere 1
Centred anywhere 2
Centred anywhere 3
Intersecting circles
Touching externally
Touching internally
The common chord
The common tangent
Graphing on a GDC
Randomised Exam Q 2013
Randomised Exam Q 2015
Find the equation 4
Find the equation 3
Centre and radius 4
Centre and radius
Investigate Equation of Circle
O-test 4
O-test 5
Matching Circles
Centre and radius 2
Centre and radius 3
Area and circumference
O-test 1
Find the equation 2
Find the equation
Find the equation 6
Timed O-test
True or false 1
True or false 2
O-test 3
O-test 2
Lines and circles 2
Lines and circles 3
Circles and chords 2
True or false O-test
O-test 7
O-test 6
Exam O-test 1
Exam O-test 2
Exam O-test 3
Exam O-test 4
Exam timed O-test
Randomised Exam Q 2000
Randomised Exam Q 2000
Randomised Exam Q 2000
Randomised Exam Q 2002
Randomised Exam Q 2003
Randomised Exam Q 2003
Randomised Exam Q 2004
Randomised Exam Q 2004
Randomised Exam Q 2004
Randomised Exam Q 2005
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Randomised Exam Q 2010
Randomised Exam Q 2010
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Randomised Exam Q 2010
Randomised Exam Q 2011
Randomised Exam Q 2011
Randomised Exam Q 2013
Investigate Equation of Circle
Family of Conics using Polar Equations
The parabola
The ellipse
The hyperbola
Rectangular hyperbola
The super-ellipse
Midpoint 3
Distance between 2 points
Midpoint
Coordinates and points
Observation O-test
Midpoint 2
Midpoint 4
Distance between 2 points 2
Distance between 2 points 3
Isosceles triangle
Vocabulary O-test
Sides of a triangle
Parallelogram
Isosceles triangle 2
Timed O-test
True or false O-test
O-test 1
O-test 2
O-test 3
O-test 4
Randomised Exam Q 2005
Randomised Exam Q 2006
Finding crossing points
Finding crossing points 2
Finding crossing points 3
The parabola 2
The parabola 3
The ellipse
The parabola 4
The parabola 5
The ellipse 2
The parabola 6
The ellipse 3
The ellipse 4
The ellipse 6
The ellipse 5
The hyperbola
The hyperbola 2
The hyperbola 3
O-test 1
O-test 2
O-test
Exam O-test
Randomised Exam Q 2002
Randomised Exam Q 2006
Randomised Exam Q 2006
Randomised Exam Q 2010
Find the gradient
Find the gradient 2
The gradient using tan t
Collinear points
True or false O-test
O-test 1
O-test 2
Timed O-test
Randomised Exam Q 2000
Randomised Exam Q 2008
Product/Chain Rules in Implicit Diff.
Chain Rule in Implicit Diff.
Implicit Diff. of Ellipse
Implicit Diff. of Hyperbola
Velocity and mass
Definition
Definition 2
O-test
Example 1
Randomised Exam Q 2006
Parametric Parabola
The parabola 2
Lissajous Curves
Parametric Ellipse
Conchoids of Nicomedes
Parametric Hyperbola
More Parametric Curves
Parametric Rectangular Hyperbola
Various curves 4
Cycloids
More cycloids
Plotting on a GDC
Exam O-test
Exam O-test
Randomised Exam Q 2000
Randomised Exam Q 2009
Randomised Exam Q 2009
Assessment
Example 1
Example 2
Example 3
Example 4
Example 5
Matching O-test
Plotting O-test 1
Plotting O-test 2
Exam O-test
Exam timed O-test
Randomised Exam Q 2000
Randomised Exam Q 2003
Randomised Exam Q 2006
Randomised Exam Q 2007
Randomised Exam Q 2007
Randomised Exam Q 2008
Randomised Exam Q 2008
Randomised Exam Q 2008
Randomised Exam Q 2008
Squares 2
Curvature 4
Curvature 5
Find the curvature
Find the curvature 2
Find the curvature 3
Find the curvature 4
Radius of curvature 1
Radius of curvature 2
Radius of curvature 3
Radius of curvature 4
Radius of curvature 5
The circle of curvature
O-test 1
O-test 2
Randomised Exam Q 2002
Randomised Exam Q 2006
Curve recognition
Asymptotes or not?
Quadratic denominator 3
Quadratic over quadratic 2
Quadratic over quadratic
Quadratic denominator
Introduction
Linear denominator
y=(x-a)/(x-b)
y=(x-a)/(x²-b)
Linear denominator 2
A decreasing function
Plotting O-test 1
Sketch the graph
Plotting O-test 2
Quadratic denominator 2
Using a GDC
Exam O-test
Randomised Exam Q 2000
O-test 2
Straight line recognition 3
Finding equations
Equations in intercept form
Straight line recognition 2
ax+by+c=0
Practise
Match Lines (y=mx+c) to Points
y-y1=m(x-x1)
Plot y=mx+c
Introduction
Observation O-test
Match Lines (y=mx+c)
Straight line recognition
Finding equations 2
Finding equations 3
O-test 1
O-test 3
Finding parallel lines
Finding parallel lines 2
Finding parallel lines 3
Perpendicular gradients
Perpendicular gradients 2
Right angles
Finding perpendicular lines 2
Finding perpendicular lines 3
Finding perpendicular lines 4
O-test 4
Vocabulary O-test
Finding lines - the method
Linear graph quiz
True or false
True or false 2
True or false O-test 1
True or false O-test 2
Quiz
Quiz 2
Timed O-test
O-test 5
O-test 6
Exam O-test 1
Exam O-test 2
Exam O-test 3
Exam O-test 4
Exam O-test 5
Exam O-test 6
Exam O-test 7
Randomised Exam Q 2000
Randomised Exam Q 2000
Randomised Exam Q 2002
Randomised Exam Q 2002
Randomised Exam Q 2003
Randomised Exam Q 2003
Randomised Exam Q 2003
Randomised Exam Q 2004
Randomised Exam Q 2004
Randomised Exam Q 2004
Randomised Exam Q 2005
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Randomised Exam Q 2011
Randomised Exam Q 2013
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Randomised Exam Q 2013
Randomised Exam Q 2014
Randomised Exam Q 2014
Randomised Exam Q 2014
The formulae
Memorise the formulae
Investigate the Rectangular Hyperbola
Investigate Equation of Parabola
The parabola 2
The circle
Investigate Equation of Ellipse
The parabola 3
The ellipse
The parabola 4
The ellipse 2
The hyperbola
The parabola 5
Investigate Equation of Hyperbola
The hyperbola 2
Other curves
Investigate Equation of Rectangular Hyperbola
The rectangular hyperbola 2
The rectangular hyperbola 3
The rectangular hyperbola 4
The rectangular hyperbola 5
The rectangular hyperbola 6
O-test
Exam O-test
Randomised Exam Q 2008
Randomised Exam Q 2009
Randomised Exam Q 2009
Randomised Exam Q 2015
Dividing straight lines in ratios
Straight line equations
Example 1
Example 2
Xtra 1
Xtra 1
Xtra 2
What happens to y?
What happens to y? 2
Investigate asymptotes
Investigate asymptotes 2
Investigate asymptotes 3
Sloping asymptotes
Sloping asymptotes 2
Curved asymptotes
Finding asymptotes
Finding asymptotes 2
Finding asymptotes 3
Finding asymptotes 4
Approaching asymptotes
Linear
Quadratic
Cubic
Trig
Rational
Rational 2
Rational 3
Rational 4
Rational 5
Rational 6
Plotting
Plotting 2
Plotting 3
Plotting 4
Turning points
Turning points 2
Kites
Parallelograms
Equilateral triangle
Rectangles 1
Rectangles 2
Squares 1
Squares 2
Midpoints
Investigate 4
Investigate 3
Investigate 1
Investigate 2
How to...
Investigate midpoints 1
Investigate midpoints 2
Distance between coordinates
Example 1
Example 2
Example 3
Example 4
Example 5
Example 6
Example 7
Example 8
Example 9
Example 10
Example 11
Example 12
O-test
Observation O-test 1
Timed O-test 1
Observation O-test 2
Timed O-test 2
Mistake 1
Mistake 2
Calculate the PMCC 3
Calculate the PMCC 2
Calculate Sxx, Syy and Sxy 2
Calculate Sxx, Syy and Sxy 1
Babies
The PMCC
Two dice
Football
O-test 1
Calculate the PMCC
Plotting points
Guess the PMCC
Calculate sx, sy & sxy 1
Calculate sx, sy & sxy 2
Timed O-test
Calculate the PMCC
Calculate the PMCC 2
Population v. area
Population v. area
Traffic accidents
Sheep
Calculate the PMCC on a GDC
Exam O-test 1
Exam O-test 2
Exam timed O-test
Randomised Exam Q 2001
Randomised Exam Q 2001
Randomised Exam Q 2001
Randomised Exam Q 2001
Randomised Exam Q 2003
Randomised Exam Q 2003
Randomised Exam Q 2007
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Randomised Exam Q 2010
Randomised Exam Q 2011
PMCC tables
O-test 2
PMCC hypothesis test
Randomised Exam Q 2000
Calculate the regression line 3
Football
Use the regression line 2
Scatter diagrams
More on Scatter diagrams
Least squares
Using the mean point
Calculate the regression line
Calculate the regression line 2
Timed O-test
Calculate the regression line 2
Calculate the regression line 2
O-test
The regression line on a GDC
Using the regression line
Use the regression line 2
Correlation & regression on a GDC
True or false
Vocabulary
Standard error of residuals
Standard error of slope
Confidence interval for b
Hypothesis test for b
Exam O-test 1
Exam O-test 2
Exam timed O-test
Randomised Exam Q 2000
Randomised Exam Q 2000
Randomised Exam Q 2001
Randomised Exam Q 2001
Randomised Exam Q 2002
Randomised Exam Q 2003
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Randomised Exam Q 2005
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Randomised Exam Q 2011
Hypothesis test 2
Find Spearman's coefficient 2
Find Spearman's coefficient
Hypothesis test
The 10 richest rock musicians
The 10 most populated countries
The 10 largest countries
The 10 poorest countries
The 10 richest countries
The 10 highest earning films
10 life expectancies
No correlation
Ranking data
Spearman tables
Exam O-test
Randomised Exam Q 2006
Randomised Exam Q 2007
Randomised Exam Q 2008
Randomised Exam Q 2008
Critical path analysis
Precedence Example 1
Example 2
Example 3
Ordering activities
Mindmap