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...
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...
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...
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...
