problem

### Gosh Cosh

Explore the hyperbolic functions sinh and cosh using what you know about the exponential function.

problem
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Gosh Cosh

Explore the hyperbolic functions sinh and cosh using what you know about the exponential function.

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Hyperbolic thinking

Explore the properties of these two fascinating functions using trigonometry as a guide.

problem
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A Very Shiny Nose?

This problem explores the biology behind Rudolph's glowing red nose, and introduces the real life phenomena of bacterial quorum sensing.

problem
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Function Pyramids

A function pyramid is a structure where each entry in the pyramid is determined by the two entries below it. Can you figure out how the pyramid is generated?

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Cobalt decay

Investigate the effects of the half-lifes of the isotopes of cobalt
on the mass of a mystery lump of the element.

problem
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Stirling work

See how enormously large quantities can cancel out to give a good
approximation to the factorial function.

problem
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Back fitter

10 graphs of experimental data are given. Can you use a spreadsheet to find algebraic graphs which match them closely, and thus discover the formulae most likely to govern the underlying processes?

problem
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Drug stabiliser

How does the half-life of a drug affect the build up of medication
in the body over time?