IB DP Maths: AA SL復習筆記2.2.5 Discriminants
Discriminants What is the discriminant of a quadratic function? How does the discriminant of a quadratic function affect its graph and roots? Forming equations and inequalities using the discrimina...
IB DP Maths: AA SL復習筆記2.2.4 Quadratic Inequalities
Quadratic Inequalities What affects the inequality sign when rearranging a quadratic inequality? The inequality sign is?unchanged?by... Adding/subtracting?a term to both sides Multiplying/dividing?...
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...
法國高商專業眾多，選擇哪些專業最好呢？
法國高等商學院（Grandes Ecoles）也稱"精英大學校"，是由法國教育部文化部及大型企業共同控股的辦校模式，是法國教育機制的一大特色。因為其畢業生往往有很好的前途與"錢途"，成為許多法國與海外求學者夢寐以求...
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...
