AP英語(yǔ)語(yǔ)言與寫作和AP英語(yǔ)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(yǔ)語(yǔ)言與寫作vs英語(yǔ)文學(xué)與寫作，讓不少APer頭痛又糾結(jié)的科...
AQA A Level Maths: Pure復(fù)習(xí)筆記2.1.1 Laws of Indices
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...
AQA A Level Maths: Pure復(fù)習(xí)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 ...
IB DP Maths: AA SL復(fù)習(xí)筆記5.2.4 Further Applications of Differentiation
Stationary Points & Turning Points What is the difference between a stationary point and a turning point? A?stationary point?is a point at which the?gradient function?is equal to zero The?tange...
IB DP Maths: AA SL復(fù)習(xí)筆記5.2.3 Second Order Derivatives
Second Order Derivatives What is the second order derivative of a function? If you?differentiate?the?derivative?of a?function?(i.e. differentiate the function a second time) you get the?second orde...
IB DP Maths: AA SL復(fù)習(xí)筆記5.2.2 Techniques of Differentiation
Chain Rule What is the chain rule? How do I know when to use the chain rule? How do I use the chain rule? Are there any standard results for using chain rule? Exam Tip You should aim to be able to ...
Edexcel IGCSE Physics 復(fù)習(xí)筆記 2.1.3 Resistance
Edexcel IGCSE Physics 復(fù)習(xí)筆記 2.1.3 Resistance Calculating Current, Resistance & Potential Difference Resistance is defined as the?opposition?to current: The higher the resistance of a ...
Edexcel IGCSE Physics 復(fù)習(xí)筆記 2.1.2 Voltage & Energy
Edexcel IGCSE Physics 復(fù)習(xí)筆記 2.1.2 Voltage & Energy Voltage The terminals of a cell make one end of the circuit?positive?and the other?negative This sets up a?potential difference?acro...
Edexcel IGCSE Physics 復(fù)習(xí)筆記 2.1.1 Charge & Current
Edexcel IGCSE Physics 復(fù)習(xí)筆記 2.1.1 Charge & Current Current Electric current is defined as?the rate of flow charge In other words, the size of an electric current is the amount of char...
AQA A Level Maths: Pure復(fù)習(xí)筆記1.1.4 Disproof by Counter Example
Disproof by Counter Example What is disproof by counter-example? Disproof by counter-examples involves finding a value that does?not?work for the given statement That value is called a?count...
Edexcel IGCSE Physics 復(fù)習(xí)筆記 1.4.3 Centre of Gravity
Edexcel IGCSE Physics 復(fù)習(xí)筆記 1.4.3 Centre of Gravity Centre of Gravity The centre of gravity of an object (sometimes called the centre of mass) is defined as: The point through which the weight o...
AQA A Level Maths: Pure復(fù)習(xí)筆記1.1.3 Proof by Exhaustion
Proof by Exhaustion What is proof by exhaustion? Proof by exhaustion is a way to show that the desired result works for every allowed value How do I prove a result by exhaustion? Using proof by exh...
