Cos^{-1}

Definition

The cosine inverse, denoted as cos^{-1}, is an operation that returns the angle whose cosine is a given number. In other words, it calculates the angle whose cosine equals a specific value.

Related terms

cos(x):

The cosine function calculates the ratio of the length of the adjacent side to the hypotenuse in a right triangle with respect to an acute angle x.

sin^{-1}(x): Similar to cos^{-1}, sin^{-1} (also known as arcsin) returns the angle whose sine is equal to a given value.

tan(x):

The tangent function determines the ratio of sin(x) to cos(x), representing the slope of a line in trigonometry.