Is their a solution for sin cos tan without calculator? - Answers

Calculating trigonometric functions, such as sin, cos, tan, requires some fairly involved calculations. If you don't have a calculator, you best use tables. Such functions are calculated with Taylor series; for example, if you want to calculate the sine of an angle, and the angle is specified in degrees, multiply by (pi/180) to convert to radians. Then, having the angle "x" in radians, you can use the formula: sin x = x - x3/3! + x5/5! - x7/7! ... Similarly: cos x = 1 - x2/2! + x4/4! - x6/6! ... Note that, although these are infinite series, they converge pretty quickly, especially for small angles. That means that the individual terms quickly get smaller and smaller.