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Arccos Calculator
To calculate the arccos or inverse of the cosine, select the mode from degree or radian and input the value using this arccos calculator with steps.
Table of Contents:
How to use this arc cosine calculator?
To find the arccos or inverse of the cosine follows the below steps.
- Select the result mode from the degree or radian.
- Enter the number in the input box.
- Hit the calculate button.
- Press the reset button to again use.
In the output, you will get the result in your respective form i-e radian or degree with step by step solution using this inverse of the cosine calculator.
Table of arc cosine value
Some solved arccos values by our arc cosine calculator 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 |
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