Arccosy
Arccosy is a mathematical function, also known as the inverse cosine or cosine inverse. It is represented mathematically as cos⁻¹(x) or acos(x). Arccosy is the inverse function of the cosine function, meaning that if y = cos(x), then x = arccosy(y). The domain of arccosy is the interval [-1, 1], and its range is the interval [0, π] (or [0, 180°] in degrees).
The arccosy function is used to find the angle whose cosine is a given value. For example,
When working with arccosy, it's crucial to remember its principal value range. Without this restriction, there