Implicit Differentiation What is implicit differentiation? An equation connecting x and y is not always easy to write explicitly in the form y= f(x) or x = f(y) However you can still differentiate ...
Quotient Rule What is the quotient rule? The quotient rule is a formula that allows you to differentiate a quotient of two functions (ie one function divided by another) Exam Tip Worked Example &nb...
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...
