arccosyy
arccosyy refers to the inverse cosine function, often denoted as arccos(x) or cos⁻¹(x), which is a fundamental mathematical function used in trigonometry and calculus. The function returns the angle whose cosine is the given value, typically expressed in radians or degrees. Its domain is the closed interval [-1, 1], meaning it only accepts real numbers within this range, as cosine values outside this interval are not possible for real angles.
The arccos function is defined for all real numbers x such that -1 ≤ x ≤ 1. Its range
In practical applications, arccos is used in various fields such as physics, engineering, and computer graphics.
Mathematically, the derivative of arccos(x) is given by -1/√(1 - x²), which is useful in integration and
The function is closely related to arcsin (inverse sine) and arctan (inverse tangent), with identities connecting