IB DP Maths: AA HL复习笔记1.5.1 Proof by Induction
What is proof by induction? Proof by induction?is a way of proving a?result is true for a set of integers?by showing that if it is?true for one integer then it is true for the next integer It can b...
AQA A Level Physics复习笔记5.3.1 Resistors in Series & Parallel
Resistors in Series & Parallel Resistors in Series When two or more components are connected in series: The combined resistance of the components is equal to the sum of individual resist...
AQA A Level Physics复习笔记5.2.4 Required Practical: Investigating Resistivity
Required Practical: Investigating Resistivity Aims of the Experiment The aim of the experiment is to determine the resistivity of a 2 metre constantan wire Variables: Independent variable?= ...
AQA A Level Physics复习笔记5.2.3 Superconductivity
Superconductivity All materials have some resistivity - even good electrical conductors such as copper and silver Resistance means that when electricity flows through a material, it heats up...
IB DP Maths: AA HL复习笔记1.4.1 Proof
What is proof? Proof is a series of logical steps which show a result is?true?for all specified numbers ‘Seeing’ that a result works for a few numbers is not enough to?show?that it will work for al...
IB DP Maths: AA HL复习笔记1.3.5 Compound Interest & Depreciation
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 or debt, however IB...
IB DP Maths: AA HL复习笔记1.3.4 Applications of Sequences & Series
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...
IB DP Maths: AA HL复习笔记1.3.3 Geometric Sequences & Series
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 the rule?‘start at ...
IB DP Maths: AA HL复习笔记1.3.2 Arithmetic Sequences & Series
?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 difference,?d,?of th...
