Edexcel IGCSE Maths 复习笔记 2.13.1 Linear Simultaneous Equations What are linear simultaneous equations? When there are two unknowns (say x and y) in a problem, we need two equations to be able to...
ELISA Each clone of plasma cells produces only one type of antibody These are known as monoclonal antibodies Monoclonal antibodies can be used in medical diagnoses They can be used in...
Edexcel IGCSE Maths 复习笔记 2.12.1 Direct & Inverse Proportion What is proportion? Proportion is a way of talking about how two variables are related to each other Direct proportion: as one va...
Edexcel IGCSE Maths 复习笔记 2.11.2 Solving Linear Equations Solving equations… … is just like rearranging formula so we’ll use exactly the same method … GROF GROBLET FIND ANSWER! This is a mnemoni...
Edexcel IGCSE Maths 复习笔记 2.11.1 Collecting Like Terms Collecting like terms Expand brackets first! TERMS are separated by + or – “LIKE” terms must have exactly the same LETTER bit (the NUMBER b...
Edexcel IGCSE Maths 复习笔记 2.10.1 Equations & Problem Solving What is problem solving? Problem solving in mathematics involves using several stages, across a variety of topics, to answer a qu...
Ethical Issues with Vaccines & Monoclonal Antibodies Ethical issues associated with the use of vaccines Use of animals: All vaccines are tested on animals before they can move onto human...
Monoclonal Antibodies Diagnostic uses of monoclonal antibodies Monoclonal antibodies can be used diagnostically for: Pregnancy tests Diagnosing HIV Detecting the presence of pathogens such a...
Edexcel IGCSE Maths 复习笔记 2.8.1 Proof/Reasoning - Algebraic What is proof? Proof is the process of showing something is true in every case, often by using algebra Given an algebraic expression… ...
