Arccos Calculator
Online arccos(x) calculator. Inverse cosine calculator. Enter the cosine value, select degrees (°) or radians (rad) and press the = button.
How to use this Arccos Calculator Tool?
How to use Yttags's Arccos Calculator?
- Step 1: Select the Tool
- Step 2: Enter Arccos And Click On =Calculate Button
- Step 3: Check Your Arccos Calculator Result
Arccos calculator to easily calculate the arc cosine (inverse cosine) function of any number. ➤ Calculate arccos(x) in degrees and radians with this trigonometric calculator.
Arccos table
| x | arccos(x) | |
|---|---|---|
| degrees | radians | |
| -1 | 180° | π |
| -0.8660254 | 150° | 5π/6 |
| -0.7071068 | 135° | 3π/4 |
| -0.5 | 120° | 2π/3 |
| 0 | 90° | π/2 |
| 0.5 | 60° | π/3 |
| 0.7071068 | 45° | π/4 |
| 0.8660254 | 30° | π/6 |
| 1 | 0° | 0 |
The online arccos calculator helps to calculate the inverse cosine function arccos (x) in radians, degrees, and different relevant units.
Table of arc cosine value
Some solved arccos values by our Inverse Cosine Calculator – Calculate arccos(x) are given in the below table.
| Arccos of | In degree | In radian |
|---|---|---|
| arccos of 1 | 0 | 0 |
| arccos of 1/2 | 60 | 1.0472 |
| arccos of 1/4 | 75.52 | 1.318 |
| arccos of 1/3 | 70.53 | 1.231 |
| arccos of 1/root 2 | 45 | 0.78539 |
| arccos of 12/13 | 22.62 | 0.3948 |
| arccos of 15/17 | 28.07 | 0.49 |
| arccos of 16/20 | 36.87 | 0.6435 |
| arccos of negative 1/2 | 120 | 2.0944 |
| arccos of cos-1 | arccos | arccos |
| arccos of infinity | no value | no value |
| arccos of sqrt 2/2 | undefined | undefined |
| arccos of 3/4 | 41.41 | 0.7227 |
If you want to link to Arccos Calculator page, please use the codes provided below!
FAQs for Arccos Calculator
What is a Arccos Calculator?
An Arccos calculator is a tool that calculates the arccosine (inverse cosine) of a given angle, providing the angle whose cosine equals the input value. It is useful in trigonometry and is often denoted as cos⁻¹ on calculators or in mathematical notation.
Why do we use arccos?
Inverse cosine is also known as arccosine. It is the inverse of cos function. Also, sometimes abbreviated as 'arccos'. It is used to measure the unknown angle when the length of two sides of the right triangle are known.
What is arccos equal to?
Yes, Arc cosine is the inverse of cosine and vice versa. arccos = cos^-1. cos = arccos^-1. not to be confused with secant which is the reciprocal.
How is arccos calculated?
In a right-angled triangle, the cosine of an angle (θ) is the ratio of its adjacent side to the hypotenuse. i.e., cos θ = (adjacent side) / (hypotenuse). Then by the definition of arccosine, θ = cos-1[ (adjacent side) / (hypotenuse) ] .
Does arccos use data?
After a course has been downloaded, you will see a green checkmark signifying the course has been downloaded on your phone. This allows you to play on that course using only your phone's GPS. Note: without a cellular connection, you will not be able to receive Arccos Caddie shot recommendations.