Edexcel IGCSE Chemistry 复习笔记 4.1.1 Organic Compounds
Edexcel IGCSE Chemistry 复习笔记 4.1.1 Organic Compounds Representing Organic Compounds Introduction Organic Chemistry is the scientific study of the structure, properties, and reactions of ...
IB DP Maths: AA SL复习笔记1.3.3 Geometric Sequences & Series
Geometric Sequences What is a geometric sequence? In a geometric sequence, there is a common ratio, r, between consecutive terms in the sequence For example, 2, 6, 18, 54, 162, … is a sequence with...
IB DP Maths: AA SL复习笔记1.3.2 Arithmetic Sequences & Series
Arithmetic Sequences What is an arithmetic sequence? In an arithmetic sequence, the difference between consecutive terms in the sequence is constant This constant difference is known as the common ...
IB DP Maths: AA SL复习笔记1.3.1 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 of the numbers in the sequence For example 1, 3, 5, 7, 9, … is a sequence ...
IB DP Maths: AA SL复习笔记1.2.3 Solving Exponential Equations
Solving Exponential Equations What are exponential equations? An exponential equation is an equation where the unknown is a power In simple cases the solution can be spotted without the use of a ca...
除了加州和东北地区之外，美国中西部有哪些好大学？
说起去美国哪里留学，大家第一时间会到纽约、加州、波士顿……这些城市不是东北地区就是加州。也的确，美国东西部聚集了很多非常出名的大学。美国大学有接近4000所，除了加州和东北地区之外，美国中西部有哪些好大...
IB DP Maths: AA SL复习笔记1.2.2 Laws of Logarithms
Laws of Logarithms What are the laws of logarithms? Laws of logarithms allow you to simplify and manipulate expressions involving logarithms The laws of logarithms are equivalent to the laws of ind...
生物科研课题推荐，生物科研竞赛同样适用！
本周新课题汇总 1代糖饮料对青少年是否有危害？ 2基于代谢组学研究长期摄入代糖对营养健康的影响 3探究长期摄入代糖对糖代谢的影响 4基于复合材料不同连接方式的应力研究 5基于威利斯圈的血流动力学研究 新课题详...
IB DP Maths: AA SL复习笔记1.2.1 Introduction to Logarithms
Introduction to Logarithms What are logarithms? Why use logarithms? Logarithms allow us to solve equations where the exponent is the unknown value We can solve some of these by inspection For examp...
2022-23NEC全美经济学挑战新赛季开启！上海平和、广东碧桂园学霸邀你组队！
历史悠久的中学生经济学术盛会 超高影响力的未来财商精英的摇篮 60%的全球站学生被藤校与G5录取 通往全球经济圈的活动飞船即将起航 NEC全美经济挑战赛 新赛季开启组队招募令不少翰林学员都通过NEC的优异成绩 斩...
IB DP Maths: AA SL复习笔记1.1.2 Laws of Indices
Laws of Indices What are the laws of indices? Laws of indices (or index laws) allow you to simplify and manipulate expressions involving exponents An exponent is a power that a number (called the b...
IB DP Maths: AA SL复习笔记1.1.1 Standard Form
Standard form (sometimes called scientific notation or standard index form) gives us a way of writing very big and very small numbers using powers of 10. Standard Form Why use standard form? Some n...
