IB DP Maths: AA SL復習筆記2.2.3 Solving Quadratics
Solving Quadratics Equations How do I decide the best method to solve a quadratic equation? How do I solve a quadratic equation by the quadratic formula? How do I solve a quadratic equation by fact...
IB DP Maths: AA SL復習筆記2.2.2 Factorising & Completing the Square
Factorising Quadratics Why is factorising quadratics useful? Factorising gives?roots (zeroes or solutions)?of a quadratic It gives the?x-intercepts?when drawing the graph How do I factorise a monic...
IB DP Maths: AA SL復習筆記2.2.1 Quadratic Functions
Quadratic Functions & Graphs What are the key features of quadratic graphs? If?a?is?positive?then the vertex is the?minimum point If?a?is?negative?then the vertex is the?maximum point Wh...
IB DP Maths: AA SL復習筆記2.1.1 Equations of a Straight Line
How do I find the gradient of a straight line? Find two points that the line passes through with coordinates (x1, y1) and?(x2, y2) The gradient between these two points is calculated by This is giv...
IB DP Maths: AA SL復習筆記1.5.1 Binomial Theorem
Binomial Theorem What is the Binomial Theorem? The?binomial theorem (sometimes known as the binomial expansion) gives a method for expanding a?two-term?expression in a bracket raised to a power A?b...
Edexcel IGCSE Chemistry 復習筆記 4.3.2 Halogens & Alkanes
Edexcel IGCSE Chemistry 復習筆記 4.3.2 Halogens & Alkanes Halogens & Alkanes In a substitution reaction, one atom is swapped with another atom Alkanes undergo a substitution reaction...
IB DP Maths: AA SL復習筆記1.4.1 Proof
Language of Proof ?What is proof? Proof is a series of logical steps which show a result is?true?for all specified numbers ‘Seeing’ that a result works for a few numbers is not enough to?show?that ...
Edexcel IGCSE Chemistry 復習筆記 4.3.1 Alkanes
Edexcel IGCSE Chemistry 復習筆記 4.3.1 Alkanes The Alkanes Alkanes are a group of?saturated?hydrocarbons The term saturated means that they only have single carbon-carbon bonds, there are no...
Edexcel IGCSE Chemistry 復習筆記 4.2.4 Cracking
Edexcel IGCSE Chemistry 復習筆記 4.2.4 Cracking Cracking Saturated molecules contain?single?bonds only whereas unsaturated molecules contain?double?bonds between their carbon atoms Alkanes?a...
