**Common questions about the COS formula include:**

1. What is the purpose of the COS formula?

2. How can the COS formula be used appropriately?

3. How can the COS formula be typed incorrectly?

4. What are some common ways the COS formula is used inappropriately?

5. What are some common pitfalls when using the COS formula?

6. What are common mistakes when using the COS Formula?

7. What are common misconceptions people might have with the COS Formula?

The purpose of the COS formula is

**to return the cosine of a specified angle, in radians, in Google Sheets**.

**The COS formula can be used correctly**to calculate the value of trigonometric cosine functions. The formula is

**commonly mistyped**if the correct angle is not given in radians, and can lead to inaccurate results.

Using the COS formula in situations that do not require the calculation of trigonometric cosine functions is a common mistake. It is important to double-check the typing of the formula after input - an incorrect angle, the wrong number of brackets, or forgetting a multiplication sign can make the entered formula nonsensical and lead to incorrect results.

**Common pitfalls**when using the COS formula include forgetting to enter angles in radians or failing to check the formula for accuracy.

**Common misconceptions**people might have with the COS Formula include thinking that the formula is designed to provide an answer for any arithmetic operation, or using the formula to calculate angles when there is a more appropriate function. It is important to remember the COS Formula is specifically designed to calculate the trigonometric cosine of a given angle in radians.