# How do you calculate Arccos on a calculator?

**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).

Also, what is Arcsin equivalent to? **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.

What is the inverse of Secant?

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".