Quadratic Graphs What are quadratic graphs? The general equation of a quadratic graph is Their shape is called a parabola ("U" shape) Positive quadratics have a value of so the parabola?is u...
Introduction to Integration What is integration? Integration?is the opposite to?differentiation Integration is referred to as?antidifferentiation The result of integration is referred to as the?ant...
Derivatives & Graphs How are derivatives and graphs connected? asymptotes?–?vertical?and?horizontal intervals where the graph is?increasing?and?decreasing intervals where the graph is?concave d...
Surds - Rationalising the Denominator What does it mean to rationalise a denominator? Rationalising a denominator changes a fraction with surds in its denominator, into an equivalent fractio...
Edexcel IGCSE Physics 復(fù)習(xí)筆記 2.2.1 Current in Series & Parallel Current in Series Circuits In a circuit that is a closed-loop, such as a series circuit, the current is the?same value a...
Concavity of a Function What is concavity? Concavity?is the way in which a?curve?(or surface)?bends Mathematically,CONCAVE?DOWN?is often called?concave CONCAVE?UP?is often called?convex Exam...
Manipulating Surds What are surds? If?n?is a positive integer and is not a square number, then?√n?(or any multiple of?√n?) is a?surd Surds are examples of?irrational numbers What do I need t...
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Laws of Indices What do I need to know about laws of indices? Laws of indices (or index laws – 'index' is the singular, 'indices' is the plural) allow you to simplify and manipulate expressi...
