Trigonometry
Inverse Cosine (Arccosine) - Trigonometry
Learn the inverse cosine (arccosine) with examples, step-by-step guide, and calculator tools. Find angle from cosine value
The inverse cosine (arccosine) is a fundamental concept in trigonometry. Find angle from cosine value. This page provides a comprehensive guide with worked examples and practical applications.
The Formula
\[\theta = \arccos(x) \text{ where } x = \cos(\theta)\]
Variables
θ
Angle
x
Cosine value (-1 to 1)
Step-by-Step Guide
- 1
Step 1: Gather your data values
- 2
Step 2: Apply the formula
- 3
Step 3: Perform the calculations
- 4
Step 4: Interpret the result
Examples
Example 1
Example 1: [] → arccos(0.5) = 60° or π/3 radians
Example 2
Example 2: 60° or π/3
Frequently Asked Questions
What is the inverse cosine (arccosine)?
Find angle from cosine value
How do I calculate inverse cosine (arccosine)?
Use the formula: \theta = \arccos(x) \text{ where } x = \cos(\theta). Follow the steps provided above.
What tools can help with inverse cosine (arccosine)?
We provide online calculators: calculator