AQA A Level Maths: Pure復(fù)習(xí)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) Ho...
AQA A Level Maths: Pure復(fù)習(xí)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 u...
IB DP Maths: AA SL復(fù)習(xí)筆記5.3.1 Introduction to Integration
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...
IB DP Maths: AA SL復(fù)習(xí)筆記5.2.6 Derivatives & Graphs
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...
AQA A Level Maths: Pure復(fù)習(xí)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 fractio...
Edexcel IGCSE Physics 復(fù)習(xí)筆記 2.2.1 Current in Series & Parallel
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...
IB DP Maths: AA SL復(fù)習(xí)筆記5.2.5 Concavity & Points of Inflection
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...
AQA A Level Maths: Pure復(fù)習(xí)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 t...
AP英語語言與寫作和AP英語文學(xué)與寫作怎么選？
如果你也有這樣的感想： “SAT要考到1500才能學(xué)這門科目嗎？” “5分率這么低真的能學(xué)明白嗎？” “這essay到底怎么寫啊？” 那么這篇文章你絕對(duì)不得不看！AP英語語言與寫作vs英語文學(xué)與寫作，讓不少APer頭痛又糾結(jié)的科...
