2022IB放榜，全球IB考试情况汇总！附英美名校IB申请要求
北京时间2022年7月5日晚，IB国际文凭组织正式发布了2022年IB毕业生的全球统考成绩。 今年由于疫情的原因，IBO官方宣布了上海等多地的5月IB大考取消了，转而使用预估分数的方式进行院校申请。 2022全球IB考试情况 ...
AQA A Level Maths: Mechanics复习笔记3.3.1 Resolving Forces & Inclined Planes
Resolving Forces If a single force is applied at an angle to the direction of motion it will need to be resolved into components of the force that act perpendicular to each other. Why resol...
IB DP Maths: AA SL复习笔记4.6.1 The Normal Distribution
Properties of Normal Distribution The binomial distribution is an example of a discrete probability distribution. The normal distribution is an example of a continuous probability distribution. Wha...
AQA A Level Maths: Mechanics复习笔记3.2.5 F = ma - Vector Notation
F = ma - Vector Notation How is Newton’s Second Law (N2L) used with vectors? The resultant force (F) and acceleration (a) are vectors For forces and motion in two dimensions, F N and a m s-2...
IB DP Maths: AA SL复习笔记4.5.2 Calculating Binomial Probabilities
Calculating Binomial Probabilities How do I calculate P(X = x): the probability of a single value for a binomial distribution? How do I calculate P(a ≤ X ≤ b): the cumulative probabilities for a bi...
AQA A Level Maths: Mechanics复习笔记3.2.4 Connected Bodies - Pulleys
Connected Bodies - Pulleys What is a pulley (or peg)? A pulley is a wheel like device that rotates as a string passes over it allowing motion of any particles attached to the string Pulleys ...
IB DP Maths: AA SL复习笔记4.5.1 The Binomial Distribution
Properties of Binomial Distribution What is a binomial distribution? A binomial distribution is a discrete probability distributionYou will be expected to use the distribution function on your GDC...
AQA A Level Maths: Mechanics复习笔记3.2.3 Connected Bodies - The Lift Problem
Connected Bodies - The Lift Problem What is the lift problem? The lift problem involves objects (particles) that are directly in contact with each other – typically a person or crate in a li...
IB DP Maths: AA SL复习笔记4.4.2 Expected Values
Expected Values E(X) What does E(X) mean and how do I calculate E(X)? E(X) means the expected value or the mean of a random variable X The expected value does not need to be an obtainable value of ...
