## Introduction to Cosine Calculator:

Cosine calculator is an online tool that helps you find the **solution of the cosine** of the given cosine function value. It helps you to simplify the process of calculating the unknown value of angles and sides in a triangle.

The cos calculator is a beneficial tool that allows you to give different types of cosine function values and it gives you a solution immediately without getting any type of external assistance from you.

## What is Cosine?

A cosine function is a fundamental trigonometric function that is defined as a periodic smooth, and **continuous function** wave that oscillates between 1 and −1. It denotes cosθ, where θ is the angle of the right-angle triangle.

It is used in mathematics, physics, engineering, and various applied sciences like astrometry to model periodic phenomena and solve problems involving angles and triangles.

## Formula of Cosine:

The **formula of the cosine** function depends on the base value and hypotenuse value of the right-angle triangle. The formula behind the cosine calculator is given below,

$$ cos(\alpha) \;=\; \frac{adjacent}{hypotenuse} $$

## How to Calculate Cosine?

To **calculate cosine** value for the given angle value and the angle of the right angle triangle using the cosine function, you should know the basic rules. These basic rules are in the functionality of the cos 1 calculator which helps to solve complex problems.

If you do not know about the basic rule of the cosine function then do not worry we will see how to calculate the cosine function value and right angle value in step.

**Cosine theta value:**

**Step 1:**

Identify the given value of theta through which the cosine angle value is calculated.

**Step 2:**

Put the value of theta in the cosine function and find the value from the trigonometric table.

**Step 3:**

You get the value of the cosine function theta value as a solution.

**Right angle value for cosine:**

To find the cosine angle value use the right angle triangle in the following steps.

**Step 1:**

Identify all the sides of the length of the triangle from the given problem.

**Step 2:**

Add the value in the formula of the cosine value function to find the angle of the cosine value.

$$ cos(\alpha) \;=\; \frac{adjacent}{hypotenuse} $$

**Step 3:**

Do the calculation process and simplify it if needed to get a solution of the right angle value for the cosine value function.

## Solved Example of Cosine:

A solved **example** of a cosine function provides you with a systematic approach and you will understand how the cosine calculator calculate cosine value.

### Example: find the value of cos α

### PASTE THE DIAGRAM HERE!

**Solution:**

As you can see in the given diagram all three sides are given, so we want to find the angle value,

$$ cos(\alpha) \;=\; \frac{adjacent}{hypotenuse} $$

Put the value in it,

$$ =\; \frac{15}{17} $$

$$ cos\; α \;=\; 0.8823 $$

$$ α \;=\; cos^{-1} (0.8823) $$

### Example: Determine each of the following expressions

$$ a . sin \left( \frac{2 \pi }{3} \right) $$

**Solution:**

The given angle is,

$$ the\; angle\; \theta \;=\; \frac{2 \pi}{3} $$

So cos value is,

$$ sin \left( \frac{2 \pi}{2} \right) \;=\; \left(\frac{\sqrt{3}}{2} \right) $$

## Way to Operate Cosine Calculator:

The cos calculator has a user-friendly design so that you can use it easily to calculate the cosine value questions.

Before adding the input value to this cos 1 calculator, you must follow some guidelines to avoid any trouble in the evaluation process. These guidelines are:

- Enter the angle value for the cosine function in the input field.
- Enter the value of the right angle triangle for the cosine function in the input field.
- Review your input value for the cosine function so that the cos 2 calculator does not provide you with the exact solution.
- Click the “
**Calculate**” button to get the result of your given cosine value problem. - If you are trying this calculator for cos for the first time then you must check the load example and its solution that gives you clarity about this concept.
- Click on the “Recalculate” button to get a new page for solving cosine value problems.

## Output from Cos Calculator:

The cosine calculator gives you the **solution** when you add the input into it. The solution may contain as,

- Result option gives you a solution for cosine function problems.
- Possible step provides you with all the steps for the cosine angle value problem in detail.

## Uses of Cos 1 Calculator:

The calculator for cos gives you many **benefits** that you can avail anytime to calculate the cosine value of the given angle value. These useful features are:

- The cos 2 calculator saves time and effort from doing calculations of cosine value function problems.
- It is a free-of-cost tool so you can use it for free to find the angle value of the cosine angle problem.
- It is a versatile tool that allows you to solve various types of cosine problems.
- You can use this cos calculator for practice so that you get a strong hold on the cosine function concept.
- It is a trustworthy tool that provides you with accurate solutions every time whenever you use it to find the cosine angle problem for calculation.
- The cosine calculator is an educational tool that is used to teach children about the concept of cosine function problems and how to perform it for the solution.