# COT

The `COT` function returns the cotangent of an angle specified in radians. The cotangent is the ratio of the adjacent side of a right-angled triangle to the opposite side, and is the reciprocal of the tangent.

## Usage

Use the `COT` formula with the syntax shown below, it has 1 required parameter:

Parameters:
1. angle (required):
The angle in radians for which to return the cotangent. Must be a numeric value.

## Examples

Here are a few example use cases that explain how to use the `COT` formula in Google Sheets.

### Calculate the cotangent of an angle

Use `COT` to calculate the cotangent of a given angle, which can be useful in trigonometry or geometry calculations.

### Find the length of an adjacent side of a right-angled triangle

Use `COT` along with the length of the opposite side of a right-angled triangle to calculate the length of the adjacent side.

### Determine the phase shift of a trigonometric function

Use `COT` in conjunction with other trigonometric functions to determine the phase shift of a sinusoidal function.

## Common Mistakes

`COT` not working? Here are some common mistakes people make when using the `COT` Google Sheets Formula:

The `COT` formula requires the angle to be provided in radians. If you accidentally provide the angle in degrees, the result will be incorrect. To convert degrees to radians, use the `RADIANS` formula.

### Not providing a numeric angle value

The `COT` formula requires the angle value to be numeric. If you provide a non-numeric value, the formula will return an error. Make sure to provide a valid angle value.

The following functions are similar to `COT` or are often used with it in a formula:

• `TAN`

The `TAN` function returns the tangent of an angle specified in radians. Tangent is the ratio of the length of the opposite side to the length of the adjacent side of a right-angled triangle. This function is commonly used in trigonometry and geometry calculations.

• `CSC`

The `CSC` function returns the cosecant of an angle. The cosecant is the reciprocal of the sine function. It takes an angle in radians as its only argument.

• `SIN`

The `SIN` function in Google Sheets returns the sine of a given angle in radians. Sine is a mathematical function that describes a smooth repetitive oscillation. It is commonly used in trigonometry, physics, and engineering to model phenomena such as waves, oscillations, and periodic motion.

You can learn more about the `COT` Google Sheets function on Google Support.