Each trigonometric function also has an inverse that can be used to find an angle from a ratio of sides. The inverses of sin (x), cos (x), and tan (x), are arcsin (x), arccos (x) and arctan (x ...

Trigonometry close trigonometryThe study of sides and angles in triangles. can be used to find a missing angle in a right-angled triangle when two sides are known. An understanding of the three ...

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.

Share News in Science New angle on trigonometry Monday, 19 September 2005 Anna Salleh ABC ...

New angle on trigonometry Anna Salleh ABC Science Online Monday, 19 September 2005 ...

A 3,700-year old Babylonian clay tablet reveals an ancient method of constructing right-angled triangles that makes it the world’s oldest and most accurate trigonometric table.