Complex numbers are a set of numbers which contain both a real part, and an imaginary part. Cartesian Form What is an imaginary number? What is a complex number? What is Cartesian Form? Exam Tip Re...
Amortisation What is amortisation? Amortisation is the process of repaying a loan over a fixed period of time Most commonly questions will be about mortgages (loans taken out to buy a home) or loan...
Compound Interest What is compound interest? Interest is a small percentage paid by a bank or company that is added on to an initial investment Interest can also refer to an amount paid on a loan o...
Many real-life situations can be modelled using sequences and series, including but not limited to: patterns made when tiling floors; seating people around a table; the rate of change of a populati...
Edexcel IGCSE Physics 复习笔记 5.2.5 Core Practical: Investigating Specific Heat Capacity Core Practical 11: Investigating Specific Heat Capacity Aim of the Experiment The aim of this experi...
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...
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 ...
Edexcel IGCSE Physics 复习笔记 5.2.4 Specific Heat Capacity Specific Heat Capacity How much the temperature of a system increases depends on: The mass of the substance heated The type of mat...
Edexcel IGCSE Physics 复习笔记 5.2.3 Core Practical: Investigating Changes of State Core Practical 10: Investigating Changes of State Aim of the Experiment The aim of this experiment is to i...
