CIE A Level Maths: Pure 1复习笔记2.2.5 Radius & Tangent
Radius & Tangent What is the relationship between tangents and radii? A tangent is a line that touches a circle at a single point but doesn't cut across the circle A tangent to a circle is perp...
CIE A Level Maths: Pure 1复习笔记2.2.4 Angle in a Semicircle
Angle in a Semicircle What is the angle in a semicircle property? It is always possible to draw a unique circle through the three vertices of a triangle – this is called the circumcircle of the tri...
CIE A Level Maths: Pure 1复习笔记2.2.3 Bisection of Chords
Bisection of Chords How can I find the equation of a perpendicular bisector? The perpendicular bisector of a line segment: is perpendicular to the line segment goes through the midpoint of the line...
CIE A Level Maths: Pure 1复习笔记2.2.2 Finding the Centre & Radius
Finding the Centre & Radius How can I find the centre and radius from any form of the equation of a circle? A circle equation in a different form can always be rearranged into (x- a)2 + (y - b)...
CIE A Level Maths: Pure 1复习笔记2.2.1 Equation of a Circle
Equation of a Circle What do I need to know about the equation of a circle? A circle with centre (a, b) and radius r has the equation You need to be able to find the centre and radius of a circle ...
CIE A Level Maths: Pure 1复习笔记2.1.4 Modelling with Straight Lines
Modelling with Straight Lines What is modelling with straight lines? Modelling means applying the mathematics to a real-life situation The model is used to find or predict future values Models will...
CIE A Level Maths: Pure 1复习笔记2.1.2 Parallel & Perpendicular Gradients
Parallel & Perpendicular Gradients What are parallel lines? Parallel lines are equidistant meaning they never meet Parallel lines have equal gradients What are perpendicular lines? Perpendicula...
CIE A Level Maths: Pure 1复习笔记2.1.1 Basic Coordinate Geometry
Basic Coordinate Geometry What is basic coordinate geometry? Basic coordinate geometry refers to working with points, lines and shapes on the coordinate axis Cartesian coordinates are simply the x ...
CIE A Level Maths: Pure 1复习笔记1.7.1 Modelling with Functions
Modelling with Functions What is a mathematical model? A mathematical model simplifies a real-world situation so it can be described using mathematics which can then be used to make predictions The...
