AMC8主要考察哪些内容？AMC8答题技巧了解一下
AMC是由美国数学协会MAA举办的一系列挑战赛，目前每年有来自全球超过6000所学校的30万名学生参与，在全球范围内具有一定影响力。AMC8是专门为8年级及以下学生准备的挑战活动。 AMC8考试时间： 2023年1月21日（周...
Edexcel A Level Maths: Pure:复习笔记5.1.3 Non-Right-Angled Triangles
Non-Right-Angled Triangles What do I do if there isn’t a right‑angle? The Sine Rule, Cosine Rule and Area Formula can be used for ANY type of triangle They can help us calculate missing side length...
Edexcel A Level Maths: Pure:复习笔记5.1.2 Right-Angled Triangles
Right-Angled Triangles What is SOHCAHTOA? SOH, CAH, and TOA are an easy way to remember the three basic trigonometry ratios They show the relationship between an angle and the different sides of a ...
Edexcel A Level Maths: Pure:复习笔记5.1.1 Trigonometry - Definitions
Trigonometry - Definitions What is trigonometry? Trigonometry looks at the relationship between side lengths and angles of triangles It comes from the Greek words trigonon meaning ‘triangle’ and me...
Edexcel A Level Maths: Pure:复习笔记4.6.1 Modelling with Sequences & Series
Modelling with Sequences & Series What do I need to know about modelling with sequences and series? Many real-life situations can be modelled using sequences and series If a quantity is changin...
Edexcel A Level Maths: Pure:复习笔记4.5.3 Recurrence Relations
Recurrence Relations What do I need to know about recurrence relations? A recurrence relation describes each term in a sequence as a function of the previous term – ie un+1 = f(un) Along with the f...
Edexcel A Level Maths: Pure:复习笔记4.5.2 Sigma Notation
Sigma Notation What is sigma notation? The symbol Σ is the capital Greek letter sigma – that's why it's called 'sigma notation'! 'Σ' stands for 'sum' – the expression to the right of the Σ tells yo...
Edexcel A Level Maths: Pure:复习笔记4.5.1 Language of Sequences & Series
Language of Sequences & Series What is a sequence? A sequence is an ordered set of numbers with a rule for finding all the numbers in the sequence The numbers in a sequence are called terms The...
Brain Bee脑科学大赛含金量高吗？2023年报名已开启！
自闭症的起因，大脑的思考、决策过程，大脑对心理的控制机制，人工神经网络和人脑的区别… 如果你对这些问题很感兴趣，那不妨了解下脑科学（神经科学）这个学科。和传统的生物化学、心理学不同，脑科学是21世纪最...
