AS/A2 Pure 4 Pure 6

P5 Topic 2: Hyperbolic functions
Definitions
Check you know the definitions of the six hyperbolic trig functions.

The definitions in terms of exponentials
sinh x		cosh x
The other hyperbolic functions
tanh x		sech x
cosech x		coth x

Summary These definitions must be memorised as they are not provided in the examination. Note how similar the last four are to the equivalent definitions of the basic trig functions. © MathsNet 2001