FAQ

What is the Cos (pi+A)?
Cos (pi+A) is the value of the trigonometric cosine function of sum of pi(180 degrees) and the given angle A, which shows shifting of angle A by pi.
Can the Cos (pi+A) be negative?
{YesorNo}, the Cos (pi+A), measured in {OutputVariableMeasurementName} {CanorCannot} be negative.
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