2022年AP考試5分率解析，哪些AP科目難度大？
AP課程作為美國大學的先修課程，相信不少準備留美的學生和家長們應該都有一定的了解。目前AP課程涉及廣泛，有三十多門的學科選擇，并且AP考試沒有規定的必修科目。如果沒有明確的目標專業，選課會非常令人頭禿。 ...
Edexcel A Level Maths: Pure:復習筆記2.2.4 Solving Quadratic Equations
Solving Quadratic Equations Solving quadratic equations We can solve quadratic equations when they are written in the form If given an unusual looking equation, try to rearrange it into this form f...
Edexcel A Level Maths: Pure:復習筆記2.2.3 Completing the Square
Completing the square What is completing the square? Completing the square is another method used to solve quadratic equations It simply means writing ?in the form It can be used to help find other...
Edexcel A Level Maths: Pure:復習筆記2.2.2 Discriminants
Discriminants What is a discriminant? The discriminant is the part of the quadratic formula that is under the square root sign It is sometimes denoted by the Greek letter ?(capital delta) How does ...
Edexcel A Level Maths: Pure:復習筆記2.2.1 Quadratic Graphs
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 uprigh...
Edexcel A Level Maths: Pure:復習筆記2.1.3 Surds - Rationalising the Denominator
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 fraction where...
Edexcel A Level Maths: Pure:復習筆記2.1.2 Manipulating Surds
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 to know ...
Edexcel A Level Maths: Pure:復習筆記2.1.1 Laws of Indices
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Edexcel A Level Maths: Pure:復習筆記1.2.1 Proof by Contradiction
Proof by Contradiction What is proof by contradiction? A proof by contradiction assumes the?opposite?result is true Then, through a series of logical steps, shows that this cannot be so How do I do...
