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...
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...
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...
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...
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?...
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 ...
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...
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: ...
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...
