Online arccos (x) calculator. Inverse cosine calculator. Enter the cosine value, select degrees (°) or radians (rad) and press the = button.

Arccosine, written as arccos or cos -1 (not to be confused with ), is the inverse cosine function. Both arccos and cos -1 are the same thing. Cosine only has an inverse on a restricted domain, 0 ≤ x ≤ π. In the figure below, the portion of the graph highlighted in red shows the portion of the graph of cos (x) that has an inverse.

Feb 4, 2017 · For the inverse trigonometric function of cosine 1 we usually employ the abbreviation arccos and write it as arccos 1 or arccos (1). If you have been looking for what is arccos 1, either in degrees or radians, or if you have been wondering about the inverse of cos 1, then you are right here, too.

The arccosine of 1 is equal to the inverse cosine function of 1, which is equal to 0 radians or 0 degrees: arccos 1 = ?

Free Arccos Calculator to find the inverse cosine (cos⁻¹) of any number between -1 and 1. View results in radians and degrees with steps.

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Use the arccos calculator to find the inverse cosine given an angle in radians or degrees, plus learn the formulas and steps to solve.

Apr 1, 2018 · Use this arccos calculator to easily calculate the arccosine of a number. Supports input of either decimal numbers (e.g. 0.5, -0.5) or fractions (e.g. 1/2, -1/2).

Calculator to give out the arccos value of a number between -1 and 1.

Since arccosine is the inverse function of cosine, the cosine of arccosine of x is equal to x: cos ( arccos x ) = x x has values from -1 to 1: x ∈ [-1,1] What is sin of arccos (x) Sine of arccosine of x. The sine of arccosine of x is equal to the square root of (1-x 2): x has values from -1 to 1: x ∈ [-1,1] What is tan of arccos (x)