The volume contains values of trigonometric functions for every thousandth of a degree, to seven places. The first table give sines and cosines, the second tangents and cotangents. Information in the ...

Revise trigonometric ratios of sine, cosine and tangent and calculate angles in right-angled triangles with this Bitesize GCSE Maths Edexcel guide.

I'm talking about trigonometry, of course: that bastion of angles and triangles that is essential to calculating velocity, momentum, and much more.

Solve trigonometric equations in Higher Maths using the double angle formulae, wave function, addition formulae and trig identities.