If you need **calculate sine, cosine, tangent** or any other trigonometric ratio, here is a tool that will do it for you.

You simply select the function to be solved, enter the value, select whether you want the **result in degrees or radians** and finally, press the calculate button to obtain the result.

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## How our trigonometric calculator works

As you have already noticed, the operation of our **trigonometry calculator** is very simple. The first thing you have to do is to select the trigonometry function you want to use for the calculation.

All of them are available so you can choose between the following ones **trigonometric functions**:

- Sine
- Cosine
- Tangent
- Secant
- Cosecant
- Cotangent
- Arcoseno
- Arcocoseno
- Arcotangent
- Arcocotangent
- Arcosecante
- Arcocosecante

When you have chosen the one you want to use, enter the number and select (if applicable) the unit as you may want to **working in degrees or radians**.

Finally, press the calculate button and you will get the result automatically. If the result should be an angle, the **trigonometric calculator** will give you the option to express it in degrees or in rads.

If you want to save yourself the calculations involved in each of the **trigonometric ratios** that we have exposed before, you can use the calculator that you have at the top of this post or use one of the tools dedicated exclusively to a specific function and to which we have left you a link.

## Trigonometric ratios and their formulas

The following is a compilation of the **main trigonometric ratios** and how they are calculated from the sides of a right triangle. We leave you with the formulas for each function:

**Sine of Teta**: opposite / hypotenuse**Cosine of Teta**adjacent / hypotenuse**Tangent of Teta**opposite / adjacent**Arcoseno**: 1 / breast**Arcocoseno**: 1 / cosine**Arcotangent**1/ tangent**Cosecant of Teta**hypotenuse / opposite**Secant of Teta**hypotenuse / adjacent**Cotangent of Teta**adjacent / opposite

If you look closely, you will see that cosecant, secant and cotangent are the inverse of sine, cosine and tangent respectively.

It is important that you are very clear about how each function is obtained as this will **is vital for solving math problems** Trigonometry will always be with you from now on.

## Other online trigonometry calculators

Hello, very good evening, I would like to ask you a question please.

I have some doubts about the units of the angles since we have rad, degrees centesimal, sexagesimal, etc. My question is that if you can add or subtract dimensionless numbers with angles. I have a subtraction of an angle with a dimensionless number and to the result of these I have to apply the arctangent, but my question is in which units will be expressed what goes inside the arctangent, because everything that goes inside what you want to take a tangent or arctangent must be an angle, right?

I hope you can answer me thank you very much

Hello Valeria,

You cannot add a number that does not have units to another one that does. If you send us the statement of the exercise we will try to help you better because we are not very clear about what you mean.

Greetings!