Cosine Half Angle Calculator

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

Trigonometric Cos Half Angle Calculation

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

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Formula:

Half Angle
cos(α/2) = √(1+cos α)

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