**Function**: =ASIN()

The ASIN function in Excel returns the arcsine (inverse sine) of a given number in radians. The function can be used to find the angle whose sine value is equal to the given number.

**How to use ASIN() **in excel**:**

To use the ASIN function, simply enter “=ASIN(number)” into a cell, where “number” is the value for which you want to find the arcsine. The function will return the result in radians.

#### To use the ASIN function in Excel, follow these steps:

- Select the cell where you want to display the result.
- Type the following formula into the formula bar: =ASIN(number), where “number” is the value for which you want to find the arcsine.
- Press Enter to calculate the result.
- The result will be displayed in the selected cell.

For example, if you want to find the arcsine of 0.5, you would enter “=ASIN(0.5)” into a cell. Excel will calculate the result in radians and display it in the cell.

Note that the input value for the ASIN function should be between -1 and 1. If the input value is outside this range, Excel will return the #NUM! error. Also, the result of the ASIN function is given in radians, which is a unit of measurement for angles. If you want to convert the result to degrees, you can use the DEGREES function.

### Examples ASIN() function in excel formulas:

- =ASIN(0.5) returns 0.523598776 radians (which is approximately 30 degrees).
- =ASIN(-0.5) returns -0.523598776 radians (which is approximately -30 degrees).
- =ASIN(1) returns 1.570796327 radians (which is approximately 90 degrees).
- =ASIN(0) returns 0 radians (since the sine of 0 is also 0).
- =ASIN(2) returns #NUM! (since the sine of any value is always between -1 and 1).

### List of similar functions:

- SIN: returns the sine of an angle in radians.
- COS: returns the cosine of an angle in radians.
- TAN: returns the tangent of an angle in radians.
- ACOS: returns the arccosine (inverse cosine) of a given number in radians.
- ATAN: returns the arctangent (inverse tangent) of a given number in radians.

### FAQs about use of ASIN function in Excel

**What is the range of input values for the ASIN function?**

The input values for the ASIN function must be between -1 and 1, inclusive.

**What does the #NUM! error mean in the ASIN function?**

The #NUM! error is returned when the input value for the ASIN function is outside the range of -1 to 1.

**Can the ASIN function be used with non-numeric input?**

No, the ASIN function only works with numeric input values.

**What is the difference between the SIN and ASIN functions?**

The SIN function returns the sine of an angle, while the ASIN function returns the angle whose sine is equal to a given value

**What is the unit of measurement for the output of the ASIN function?**

The ASIN function returns the result in radians, which is a unit of measurement for angles.

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