Arccos Calculator

Welcome to our online Arccos Calculator, your key to unlocking the world of inverse cosine calculations. Dive in and explore the power of trigonometric precision at your fingertips!

arccos  
Angle in degrees:
°
Angle in radians:
rad
Calculation:

Understanding Arccosine

Arccosine, denoted as arccos(x) or cos⁻¹(x), stands as the inverse of the cosine function (cos(x)). For instance, if the cosine of an angle, say 60°, equals 0.5:

cos(60°) = 0.5

Then the arccosine of 0.5, represented as arccos(0.5) or cos⁻¹(0.5), equals 60°. This relationship helps determine angles based on cosine values.

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

Arccos Calculator: Unraveling Inverse Cosine

  • Solve with Precision: Our Arccos Calculator simplifies the process of finding inverse cosine values, an essential tool for trigonometric solutions.

  • User-Friendly: Input your value and get instant results, making complex calculations a thing of the past.

  • Accuracy Assured: Navigate trigonometric challenges effortlessly with this online calculator, ensuring precise inverse cosine solutions at your fingertips.

Why do we use arccos?

Inverse cosine, often referred to as arccosine or abbreviated as 'arccos,' serves as the inverse counterpart to the cosine function. This mathematical tool comes into play when determining an unknown angle in a right triangle, given the lengths of its two sides.


See also

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