Sin Cos Tan are designed exclusively for a digital interface; that’s not to mention trigonomic functions on a graphing calculator, but rather the Finnish synthpop duo consisting of Jori Hulkkonen and ...

Usually, the calculator will automatically open a bracket after pressing the sin, cos, or tan button. Remember to close the bracket after typing in the angle. The answer is = 16.1679… ...

Learn about three trigonometric ratios in similar right-angled triangles with this BBC Bitesize Maths article. For students between the ages of 11 and 14.