How to use the IMCOS Function in Excel office 365?
Tags: tousetheimcosfunctio, excel, excelfunctions
Published: 2021-09-01 07:08:21

---
title: How to use the IMCOS Function in Excel office 365?
published: true
date: 2021-08-31 14:59:53 UTC
tags: ToUseTheIMCOSFunctio,Excel,ExcelFunctions
canonical_url: https://geekexcel.com/how-to-use-the-imcos-function-in-excel-office-365/
---

In this blog post, we will explain to you how to **use the IMCOS**  **Function In Excel Office 365.** Let’s see them below!! Get an official version of MS Excel from the following link: **[https://www.microsoft.com/en-in/microsoft-365/excel](https://www.microsoft.com/en-in/microsoft-365/excel)**

## IMCOS Function

The **IMCOS function** returns the **complex Cosine of the complex number** (inumber) having both **real & imaginary parts**.

## IMCOS Function Syntax

```
=IMCOS (inumber)
```

**Syntax Explanation:**

**inumber:** complex number having both real & imaginary.

## Example1

- Firstly, you have to  **create a sample data**  with input  **complex number**.

![](https://geekexcel.com/wp-content/uploads/2021/08/Sample-data-50.png)<figcaption>Sample data</figcaption>

- Then, you need to get the **complex Cosine of the input complex number** (inumber).
- Now, you have to use the following  **formula ** to calculate  **IMCOS**  **Function**.

```
=IMCOS (A2)
```

**A2:** complex number (inumber) provided as a cell reference.

![](https://geekexcel.com/wp-content/uploads/2021/08/IMCOS-Function.png)<figcaption>IMCOS Function</figcaption>

- After that, the  **formula ** returns the **complex Cosine of the complex number** using the following **formulation**.

```
Cos (4 + 3i) = Cos (4) * Cosh (3) - i Sin (4) * Sinh (3)
```

- At last, you have to copy the  **formula ** to the other remaining cells using  **Ctrl + D**  shortcut key.

![](https://geekexcel.com/wp-content/uploads/2021/08/Copy-to-other-cells-8.png)<figcaption>Copy to other cells</figcaption>

## Example2

- Firstly, you have to  **create a sample data**  with input  **complex number**.

![](https://geekexcel.com/wp-content/uploads/2021/08/Ex-Sample-data.png)<figcaption>Sample data</figcaption>

- Then, you need to get the **complex Cosine of the input complex number** (inumber).
- Now, you have to use the following  **formula ** to calculate  **IMCOS**  **Function**.

```
=IMCOS (A2)
```

**A2:** complex number (inumber) provided as a cell reference.

![](https://geekexcel.com/wp-content/uploads/2021/08/Ex-2-IMCOS-Function.png)<figcaption>IMCOS Function</figcaption>

- After that, the  **formula ** returns the **complex Cosine of the complex number** using the following **formulation**.

```
Cos (4 + 3i) = Cos (4) * Cosh (3) - i Sin (4) * Sinh (3)
```

- At last, you have to copy the  **formula ** to the other remaining cells using  **Ctrl + D**  shortcut key.

![](https://geekexcel.com/wp-content/uploads/2021/08/Ex-2-Copy-to-other-cells-6.png)<figcaption>Copy to other cells</figcaption>

**Check this too:**

- [IMLN Function](https://geekexcel.com/how-to-use-the-imln-function-in-excel-office-365/)
- [IMTAN Function](https://geekexcel.com/how-to-use-the-imtan-function-in-excel-office-365/)
- [IMDIV Function](https://geekexcel.com/how-to-use-the-imdiv-function-in-excel-office-365/)
- [IMSQRT Function](https://geekexcel.com/how-to-use-the-imsqrt-function-in-excel-office-365/)

## Verdict

We hope that this short tutorial gives you guidelines to **use the IMCOS**  **Function In Excel Office 365. ** Please leave a comment in case of any **queries,** and don’t forget to mention your valuable **suggestions** as well. Thank you so much for Visiting Our Site!! Continue learning on **[Geek Excel](https://geekexcel.com/)!! **Read more on [**Excel Formulas**](https://geekexcel.com/excel-formula/) **!!**

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