CIE A Level Maths: Pure 3复习笔记4.1.2 Product Rule
Product Rule What is the product rule? The product rule is a formula that allows you to differentiate a product of two functions Exam Tip The product rule formulae are in the formulae booklet – mak...
CIE A Level Maths: Pure 3复习笔记4.1.1 Differentiating Other Functions (Trig, ln & e etc)
Differentiating Other Functions (Trig, ln & e etc) How do I differentiate common functions? These are the common results How do I differentiate exponentials and logarithms? The two basic differ...
CIE A Level Maths: Pure 3复习笔记3.4.1 Trigonometric Proof
Trigonometric Proof Proving trigonometric identities You can use trigonometric identities you already know to prove new identities Make sure you know the simple trigonometric identities and further...
CIE A Level Maths: Pure 3复习笔记3.3.1 Strategy for Further Trigonometric Equations
Strategy for Further Trigonometric Equations How to approach solving harder trig equations You can solve harder trig equations, such as those involving reciprocal and inverse functions in a variety...
CIE A Level Maths: Pure 3复习笔记3.2.3 R addition formulae Rcos Rsin etc
R addition formulae Rcos Rsin etc How can I simplify expressions like a sin x ± b cos x or a cos x ± b sin x? If a and b are positive constants, then a sin x + bcos x can be rewritten as R sin (x ...
CIE A Level Maths: Pure 3复习笔记3.2.2 Double Angle Formulae
Double Angle Formulae What are the double angle formulae? The double angle formulae are derived from the 'A+B' versions of the compound angle formulae: Exam Tip The double angle formulae can be ...
CIE A Level Maths: Pure 3复习笔记3.2.1 Compound Angle Formulae
Compound Angle Formulae What are the compound angle formulae? There are six compound angle formulae (also known as addition formulae), two each for sin, cos and tan: For sin the +/- sign on the lef...
CIE A Level Maths: Pure 3复习笔记3.1.3 Trigonometry - Further Identities
Trigonometry - Further Identities What identities do I need to know with secant, cosecant, and cotangent? There are two identities with sec, cosec and cot that you need to know and be able to use: ...
CIE A Level Maths: Pure 3复习笔记3.1.2 Reciprocal Trig Functions - Graphs
Reciprocal Trig Functions - Graphs What does the graph of the sec look like? The graph of y = secx looks like this: y-axis is a line of symmetry has period (ie repeats every) 360° or 2π radians ver...
