How can I solve inequalities graphically? Consider the inequality f(x) ≤ g(x), where f(x) and g(x) are functions of x if we move g(x) to the LHS we get f(x) – g(x) ≤ 0 Solve f(x) – g(x) = 0 to find...
Edexcel IGCSE Biology 复习笔记 5.3.1 The Process of Genetic Engineering The Process of Genetic Engineering The gene that is to be inserted is located in the original organism Restriction enz...
Edexcel IGCSE Biology 复习笔记 5.2.1 Selective Breeding Selective Breeding in Animals Selective breeding or artificial selection means to select individuals with desirable characteristics an...
How do I find the sum & product of roots of polynomials? an is the coefficient of the leading term an-1 is the coefficient of the xn-1 term Be careful: this could be equal to zero a0 is the c...
Edexcel IGCSE Biology 复习笔记 5.1.6 Fish Farming Fish Farming Benefits of fish farming Most fish are still caught in the wild (i.e. in the open ocean or in freshwater rivers and lakes) However, ov...
Edexcel IGCSE Biology 复习笔记 5.1.5 Bacteria in Food Production Bacteria in Food Production Microorganisms can be used by humans to produce foods and other useful substances As well as fung...
In exams you’ll commonly be asked to sketch the graphs of different polynomial functions with and without the use of your GDC. What’s the relationship between a polynomial’s degree and its zeros? I...
What is polynomial division? Polynomial division is the process of dividing two polynomials This is usually only useful when the degree of the denominator is less than or equal to the degree of the...
很多人都觉得，英国文化的精髓，并不是在繁华的市中心熙熙攘攘的街道上，而是在英国那些最僻静的小城小镇中，约克就是其中之一。它的历史在这里沉淀，很多人一来到这里就爱上了这里。除了优美的风景，这里也是一...
What is the factor theorem? The factor theorem is used to find the linear factors of polynomial equations This topic is closely tied to finding the zeros and roots of a polynomial function/equation...
Edexcel IGCSE Biology 复习笔记 5.1.4 Anaerobic Respiration in Yeast Practical: Investigating Anaerobic Respiration in Yeast Yeast can respire anaerobically (without oxygen), breaking down gl...
随着海外留学申请人数增多，23fall的竞争和申请难度也在与日俱增，很多专业都提高了录取标准，看来留学圈里不光学生卷，各大名校也在卷啊！这不，美国大学已经开始了内部竞争，争相开设了一批新学院和新专业！ 及...
