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...
IB DP Maths: AA SL复习笔记3.5.1 Graphs of Trigonometric Functions
Graphs of Trigonometric Functions What are the graphs of trigonometric functions? The trigonometric functions sin, cos and tan all have special periodic graphs You’ll need to know their properties ...
IB DP Maths: AA SL复习笔记3.4.2 Exact Values
Trigonometry Exact Values What are exact values in trigonometry? For certain angles the values of sin θ, cos θ and tan θ can be written exactly This means using fractions and surds You should be fa...
IB DP Maths: AA SL复习笔记3.4.1 The Unit Circle
Defining Sin, Cos and Tan What is the unit circle? The unit circle is a circle with radius 1 and centre (0, 0) Angles are always measured from the positive x-axis and turn: anticlockwise for positi...
IB DP Maths: AA SL复习笔记3.3.3 Applications of Trigonometry & Pythagoras
Bearings What are bearings? Bearings are a way of describing and using directions as angles They are specifically defined for use in navigation because they give a precise location and/or direction...
哪些U.S News排名下降的美国学校，申请呈增长趋势？
打算赴美国留学的同学，很多将U.S NEWS美国大学排名作为选校的重要参考依据。但是有些学校虽然排名下跌，但却热度不减！例如，南加州大学在近10年的U.S.NEWS美国大学排名中下跌了5位，但申请的学生呈增长趋势，录...
美国中小学生数学国际竞赛盘点！
如今“爬藤”越来越难，光光有SAT已经入不了藤校招考官的法眼，还必须要有一些差异化的加分项。而美国各阶段的数学学术活动成绩不失为体现孩子数学实力的重要证明。美国各类中小学生数学国际学术活动有哪些？ 袋鼠...
IB DP Maths: AA SL复习笔记3.3.2 Non Right-Angled Trigonometry
Sine Rule What is the sine rule? The sine rule allows us to find missing side lengths or angles in non-right-angled triangles It states that for any triangle with angles A, B and C Where a is the s...
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本周课题导视 统计学方向课题 复杂系统可靠性模型研究单反相机非线性响应曲线的测量与标定方向数据的误差线分析民众政治社会价值观研究世界幸福指数流量明星微博转发链新冠疫情走势预测 1. 复杂系统可靠性模型研...
