2022北京中考分数线出炉，多少分才能进入第一梯队国际部？
2022北京中考成绩及今年中招各区分数段人数统计已经在官网公布。 中考成绩全线上涨 今年共有10.09万人参加中考，比去年多了两万人，不仅更多人竞争有限的优质学校。 而且从公布的数据来看，今年的中考成绩全线上...
申请美国Top 30名校，SAT/ACT到底需要考到多少分？
今年因疫情原因，部分地区5月AP考试遗憾取消。那么未考试的同学们该如何逆风翻盘？正常考试的同学又该如何脱颖而出？ SAT/ACT无疑是最佳的主战场！我们研究了顶尖院校的录取学生背景，发现即使学校不强制要求提交...
IB DP Maths: AA SL复习笔记3.6.3 Relationship Between Trigonometric Ratios
Relationship Between Trigonometric Ratios What relationships between trigonometric ratios should I know? If you know a value for one trig ratio you can often use this to work out the value for the ...
IB DP Maths: AA SL复习笔记3.6.2 Double Angle Formulae
Double Angle Formulae What are the double angle formulae? The double angle formulae for sine and cosine are: These can be found in the formula booklet You do not need to know how to derive them How...
AQA A Level Maths: Mechanics复习笔记2.3.3 Acceleration due to Gravity
Acceleration due to Gravity What is acceleration due to gravity? If motion is vertical and no other forces are acting on a particle, the acceleration of the particle will be due to gravity A...
IB DP Maths: AA SL复习笔记3.6.1 Simple Identities
Simple Identities What is a trigonometric identity? They are used to help simplify trigonometric equations before solving them Sometimes you may see identities written with the symbol ≡ This means ...
AQA A Level Maths: Mechanics复习笔记2.3.2 suvat in 1D
suvat in 1D What are the suvat (constant acceleration) formulae? For constant acceleration there are five suvat formula: How do I identify values for suvat within a question? Common phrases...
IB DP Maths: AA SL复习笔记3.5.3 Modelling with Trigonometric Functions
Modelling with Trigonometric Functions What can be modelled with trigonometric functions? Anything that oscillates (fluctuates periodically) can be modelled using a trigonometric function Normally ...
IB DP Maths: AA SL复习笔记3.5.2 Transformations of Trigonometric Functions
Transformations of Trigonometric Functions What transformations of trigonometric functions do I need to know? As with other graphs of functions, trigonometric graphs can be transformed through tran...
