# How do you calculate Arccos on a calculator?

Category:
science
physics

Function. To

**calculate arcsin**, press the "2nd" button and then the "sin" button. This will produce the "sin^-1" button. Enter the value you wish to**calculate**and press enter.

Then, how do you do Arccos on a calculator?

How to use the **arccos** (x) **calculator**. 1 - **Enter** x as a real number, within the domain of **arccos** function such that -1 ≤ x ≤ 1 and the number of decimal places desired then press "**enter**". Two answers are displayed: one in radians and the second in degrees. You may use it to explore the domain and range of **arccos**(x).

**Arcsin**definition The

**arcsine**of x is defined as the inverse sine function of x when -1≤x≤1. When the sine of y is

**equal to**x: sin y = x. Then the

**arcsine**of x is

**equal to**the inverse sine function of x, which is

**equal to**y:

**arcsin**x = sin

^{-}

^{1}x = y.

Thereof, how do you do COS 1 on a calculator?

**Explanation:**

- Press the "2nd" button to be able to access the cos−1 function. The word "2nd" show up in the bottom left hand corner of the screen.
- Press the "COS" button to access the cos−1 function.
- Enter your number with the number pad.
- Press the "Enter =" key to return the result.

For every trigonometry function such as sec, there is an **inverse** function that works in reverse. These **inverse** functions have the same name but with 'arc' in front. So the **inverse** of sec is arcsec etc. When we see "arcsec A", we interpret it as "the angle whose **secant** is A".