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Alternative Recurrence Relation for Fibbonacci Sequence

Expansion and Convergence of Binomial

Domain of Function Equals Range of Inverse and Vice Versa

Decoding a Regression Line to Find Relationship Between Original Variables

Changing Hexadecimal Into Decimal

Changing Decimal Into Hexadecimal

Changing Between Arbitrary Bases

Changing Decimals Into Binary

Changing Binary Into Decimal

Transforming Variance and Mean 1

Particle Held in Equilibrium on Smooth Slope by Force Parallel to Slope

Performing a Backward Pass on an Activity Network

Integrating Sec Squared x Tan Squared x

Proof of Length of Arc Formula in Cartesian Coordinates

Solving Equations With Algebraic Fractions

First Fit Decreasing Algorithm

Reduction Formulae 2

The Insertion Sort

Solving Simple Simultaneous Inequalities

Proof of Irrationality of Square Root of 2

The Interchange Sort

Writing a Recurring Decimal as a Fraction

Activity Networks – Dummies 1

Activity Networks – Dummies 2

Activity Networks – Dummies 4

Advanced Venn Diagrams 1

nth Roots of Unity

Activity Networks – Dummies 3

Moment of Inertia of Thin Disc About Perpendiular Axis Passing Through Centre

Moment of Inertia of Thin Rod About One End

Converting DNA Into Binary Code

Diagonalizing a 2×2 Matrix

Drawing a Pie Chart

Eigenvalues of 2×2 Matrix

Expanding Fractional Powers Using General Binomial Expansion

Expanding Negative Powers Using General Binomial Expansion

Factorising a Quintic Polynomial With Real Coefficients Given One Real Root

Finding Eigenvectors of 2×2 Matrix

Maximum Value of the Reciprocal of a Quadratic

Binomial Expansion of a Quotient

Proof of the Inverse Function Rule

Finding the Area Between Two Curves and the x Axis

Finding the Area Between the x Axis and a Cubic Which Crosses the x Axis Twice

Series and Parallel Circuits

Conservation of Momentum and Collisions 2

Finding the Coommon Speed of Particles that Stick Together During a Coolision

Variation of Volume With Tempe
Changing Temperature, Volume and Pressure of a Gas 3

Conservation of Energy Applied to a Falling Ball

Conservation of Momentum and Collisions 1

Problem Solving With Similar Shapes 2

Problem Solving With Similar Shapes

Proof of Lost Volts Formula

Finding a Normalisation Constant for a Continuous Probability Distribution

Finding a Normalistation Constant for a Discrete Probability Distribution

Finding the Cumulative Distribution Function for a Uniform Distribution

Testing a Logical Statment

Identifying Regions on a Venn Diagram 1

Identifying Regions on a Venn Diagram 2

Using Snells Law to Find Angle of Incidence

Using Snells Law to Find Angle of Refraction

Using Snells Law to Find Refractive Index

Adding Algebraic Fractions

Changing Linear Into Rotational Equations of Motion

Finding the Area Between Two Curves

Integration Using Parametric Coordinates

Log Problem With a Change of Base 2

Log Problem With a Change of Base

Potential Dividers 2

Potential Dividers 3

Internal Resistance of a Battery

Potential Divider 1

Proof of Potential Divider Formula

Finding the Line of Intersection of Two Circles

Finding the Point of Intersection of Circle and Line

Intersection of Circle With Axes

The Trapezium Rule – Concave and Convex Functions – Overestimates and Underestimates

The Trapezium Rule

Upper Estimate for Integral

How to Treat a Summation Not Starting at 1

Particle in Equilibrium on a Slope

When Does the Inverse of a 2×2 Matrix Exist

Least Distance Between Particle and Point

The Bubble Sort Algorithm

Finding the Resultant of Two Forces at Right Angles

Finding the Resultant of Two Forces

Point of Intersection of Tangents to Hyperbola

Tangent to Hyperbola at a General Point

Finding the Normal to a Hyperbola at a General Point

Finding the Resultant of Three Forces

Finding a Normal to a Curve at a Point

Beam Hinged at Wall and Held Horizontal By Cable

Ladder on Rough Ground Resting Against Smooth Wall

Uniform Beam Resting on Two Supports – Finding Reaction Forces at Supports

Factorising a Cubic Given a Real Root

Finding a Quadratic With Given Complex Roots

Finding an Expression for Sums of Powers of Numbers

Finding a Vector Parallel to Two Planes

Integrating e to the Power of x Times Cos x

Integrating e to the Power of x Times Sin x

Integration Using Partial Fractions

Proof of Volume of Revolution Formula

Volume of Revolution 1

Writing Numbers in Standard Form

How to Integrate Cosech x

How to Integrate Sech x

Length of Curve y=x Squared

Solving Equations of the Form a Cosh x + b Sinh x=c

Changing Ordinary Trigonometric Identities to Hyperbolic Form

Finding an Expression for Cosh 3x

Finding an Expression for Sinh 3x

Finding an Expression for Arcsinh x

Finding an Expression for Arctanh x

Finding an Expression for Arccosh x

Differentiating Arccosh x

Differentiating Arcsinh x

Differentiating Arctanh x

Differentiating Arcsin x

Differentiating Arctan x

Differentiating Arccos x

Find First Term and Common Difference for Arithmetic Series With Terms in Terms of k

Tricky Elevation Question

Find First Term and Common Ratio for Geometric Series With Terms in Terms of k

Proof of Diffraction Grating Formula

Real Object and Real Image for a Converging Lens

Induced EMF in Coil Passing Into Magnetic Field

Integrate Square Root of x Over x -1

Integrating x Over the Square Root of x – 1

De Broglies Equation For Matter Particles

To Find sin x and cos x Given tan x

Units of Speed

Dividing Numbers Written in Standard Form

Estimating

Exponential Growth and Simultaneous Equations

Irrational Numbers that Add to Give a Rational Number

Length Area Volume or None

Making x the Subject of a Formula When There are xs on Both Sides

Multiplying Mixed Fractions

Multiplying Numbers Written in Standard Form

Writing a Quotient to be Able to Integrate it

Compounded Fractions

Adding Numbers Written in Standard Form

Emission Spectra

Proof of E=hf Formula for Photons

Absorption Spectra

Proof that a Simple Pendulum Moves With Simple Harmonic Motion

Whenever I Think About the British Prime Minister

Finding a Side Using the Sine Rule

Integrating 1 Over Square Root x Squared Plus 1

Integrating 1 over x Squared Plus 1

Integrating 1 Over Square Root 1 Minus x Squared

Integrating 1 over Square Root x Squared Minus 1

Integrating 1 over x ln x

Integrating Top Heavy Polynomials

Integrating cosec x

Integrating ln x

Integrating sec x

Integrating x ln x

Angle Between Vertical and a Side of a Hanging Lamina

Circle Theorems – Circle Drawn in Triangle

Angular Momentum Operator Lx and Lz Do Not Commute

Angular Momentum Operators Lx and Ly Do Not Commute

Angular Momentum Operators Ly and and Lz do not commute

Energy Operator in Quantum Mechanics for Free Particle

Pythagoras Theorem in Three Dimensions

Angles Between Vectors or Lines and Planes

Finding the Angle Between Two Vectors

Finding the Dot Product of Two Vectors

Least Distance From a Point to a Line

Proof of Special Relativity Energy Momentum Formula

Solving Equations of the Form a cos x equals b sin x

Solving Quadratic Trigonometric Equations

The Polar Form of a Complex Number

Hookes Law and the Energy Stored in a Spring

Proof of Simple Formula for Gravitational Potential Energy

Solving Simultaneous Equations With Matrices

Kruskals Algorithm

First Fit Algorithm

Prims Algorithm

Number of Combinations of Selections From 2 Different Groups

Number of Permutations of Selections From 2 Different Groups

Solving Log Equations 2

Adjoint of 3×3 Matrix

Asymptotes – x Divided by a Quadratic

Cofactors of 3×3 Matrix

Dividing Complex Numbers

Multiplying Complex Numbers

Multiplying and Dividing Complex Numbers Written in Polar Form

Solving Absolute Value Equations

Proof of Simple Kinetic Energy Formula

Proof of Keplers Third Law

Why We Weigh Less at the Equator Than at the Poles

Hookes Law and Youngs Modulus

Differentiating Unit Vectors in Polar Coordinates

Rate of Change of Radial Vector in Polar Coordinates

Unit Vectors in Polar Coordinates

Vectors 1

Changing Temperature, Volume and Pressure of a Gas

Changing Temperature, Volume and Pressure of a gas 2

RMS Speeds and Average Kinetic Energy

Speed of Molecules of a Gas Depends Only on Mass and Temperature

Variation of Pressure With Temperature at Constant Volume

Boyles Law – Variation of Pressure With Volume at Constant Temperature

Finding a Cartesian Equation for a 3D Line

Finding the Point of Intersection of a Line With a Plane

Finding Where the Graph of a Function is Increasing

Voltage Across Each Resistor in a Series Circuit

Current Through Each Resistor in a Parallel Circuit

Current in a Circuit With Resistors in Parallel and Series (1)

Current in a Circuit With Resistors in Parallel and Series (3)

Current in a Circuit With Resistors in Parallel and Series (4)

Current in a Circuit With Resistors in Parallel

Electron Accelerated Through a Potential Difference

Finding the Standard Deviation of a List of Numbers

Lower Quartile From a Frequency Table

Lower and Upper Quartiles of a List of Numbers

Median From a Frequency Table

Picking r Objects From n Possible

Summary Statistics

The Difference Between Arrangements of Objects the Same or Not

Upper Quartile From a Frequency Table

Finding the Variance From a Frequency Table

A Really Complicated Circle Theorem Example

Another Circle Theorem Example

Drawing Histograms

Finding the nth Term for a Quadratic Sequence

Circle Theorem 1

Circle Theorems 2

Circle Theorems 3

Finding Centre of Gravity and Weight of a Rod

Finding Position Vector of a Particle of Constant Velocity

Finding Tension and Acceleration for Particles Hanging over a Pulley

Finding Velocity and Acceleration Given an Expression for the Displacement

Cars and Trailers

Integrating cos Squared x

Integration By Substitution

Odd and Even Functions

Proof of Formula Arctan x + Cottan x = pi over 2

Proof of Formula for cos 3x

Proof of Formula for cos 4 theta

Proof of Formula for sin 3x

Proof of Trigonometric Identiy arccos x + arcsin x = pi over 2

Proving the Double Angle Formulae

Proving the Identity Tan A + Tan B + Tan C = Tan A Tan B Tan C

Rate of Change and Chain Rule (2)

Rate of Change and Chain Rule

Separating an Expression into Partial Fractions

Writing a Parametric Curve in Cartesian Coordinates

Writing a cos x + b sin x as R sin (x+ alpha)

Differentiating Exponentials

Differentiating a Function of a Product

Differentiating a Function of a Quotient

Differentiating a Product With a Function of a Function

Differentiating a Product of Three Functions

Differentiating a Quotient With a Product

Differentiating a Quotient of Functions of Functions

Finding Some Principle Values of Trigonometric Functions

Finding the Gradient of a Curve Defined Parametrically

Functions of Functions

Implicit Differentiation

Integrating Reciprocals of Linear Expressions

Integrating Sin Squared x

Finding if Two 3D Lines Intersect

Finding the Cartesian Equation of a Line in 3D

Finding the Equation of a Plane Perpendicular to a Given Vector Passing Through a Given Point

Finding the Equation of the Line of Intersection of Two Planes

Integrating a Product of Cosines

Integrating a Product of Sines and Cosines

Integrating a Product of Sines

Finding the Centre and Radius of a Circle

Finding the Equation of a Tangent to a Circle at a Given Point

Is a Point Inside or Outside the Circle

Proof of Formula for Sum of Geometric Series

Solving Exponential Equations Which Reduce to Quadratics

Equation of a Perpendicular Line Passing Through a Given Point

Finding Conditions on a Quadratic Having No Roots When the Coefficients are Given in Terms of a Variable

Finding Greatest n Such that the Sum of an Arithmetic Series is Less Than a Certain Number

Finding Least n Such that the Sum of an Arithmetic Series is Greater Than a Certain Number

Finding and Classifying Turning Points

Graphs of Quotients of Rational Functions

Number of Roots of a Quadratic

Proof of Formula for Sum of Arithmetic Series

Rationalising the Denominator

finding_the_minimum_value_of_a_quadratic

Changing Between Degrees and Radians

Long Division

Percentage Increase or Dexrease

Problem Solving Using Pythagoras Theorem

Problem Solving With Differences of Squares

Proof That the Difference Between Consecutive Square Numbers is Odd

Raising an Expression to a Power

A Common Mistake Made While Using Percentages

Adding Mixed Fractions

Angles in a Regular Polygon

Arranging Reciprocals in Order

Cancelling Algebraic Fractions

Compound Interest

Disproving a Statement by Finding a Counterexample

Dividing Mixed Frcations

Finding Pre Sale Prices Given the Sale Price

Finding Sale Prices

Finding a Region Satisfying Inequalities

How Long Before We Are Head Deep in Poo

How Many People Die During a Prime Ministers Speech

Irrational Numbers That Multiply to Give a Rational Number

Finding a Limit of an Expression at a Point Using Taylor Series

Finding the Taylor Series of a Function About a Point

Finding the Taylor Series of a Product

Integrating in Polar Coordinates

Solving Differential Equations by Separation of Variables

Writing a Cartesian Equation in Polar Coordinates

Finding the Equation of a Line Given Two Points

Distance Between Two Points

Inverse Proportion

Plotting Cumulative Frequency Curves

Plotting Quadratic Curves

Direct Proportion

Using Simple Trigonometry to Find an Angle

Finding the nth Term of a Simple Sequence

Rearranging Simple Equations

Factorising into 1 Bracket

Expanding 1 Bracket

Simplifying Algebra 1

Using the Cosine Rule to Find a Side

Using the Sine Rule to Find an Angle

Using the Cosine Rule to Find an Angle

Finding the Mean of a Frequency Table

Difference of Squares

Writing a Number as a Product of Prime Factors

Highest Common Factor

Lowest Common Multiple

Two Sided Inequalities

Volumes of Prisms

Circle Theorems Summary

Lengths Areas and Volumes of Similar Solids

Bearings

Rationalising the Denominator

Probability Graphs

Dividing Decimals

Simplifying Surds

Multiplying Surds

Expanding Surd Brackets

Solving Simultaneous Equations

Solving Quadratic Equations – the_abc Formula

Multiplying Decimals

Venn Diagrams – Independent Events_Two

Conditional Probability for Independent Events

Venn Diagrams – Independence and Conditional Probability – A Worked Example

Finding the Variance From a Probability Table

Finding the Mean from a Probability_table

venn diagrams independent events

binomial expansion

log equations which involve quadratics

educating a banker

indices

adding subtracting multiplying dividing fractions

Solving Simple Equations with x’s on Both Sides

Finding the Minimum Value of a Quadratic

Finding the Equation of a Tangent to a Curve at a Point

Factorising Quadratics into Two Brackets

Expanding Two Brackets

Differentiation – The Quotient Rule C3

Differentiation Using the Product Rule

Completing the Square

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