Cosine Half Angle Calculator

Online trigonometric calculator which is used to find the cosine (cos) half angle from the known angle value (x).

Online trigonometric calculator which is used to find the cosine (cos) half angle from the known angle value (x).

Code to add this calci to your website

Just copy and paste the below code to your webpage where you want to display this calculator.

Formula:

cos(α/2) = √(1+cos α)