Use a calculator to find the approximate value of sin-1( 0.635).

To find the approximate value of sin^(-1)(0.635) using a calculator, follow these steps:

1. Turn on your calculator and make sure it is set to the appropriate mode (either degrees or radians).

2. Locate the sin^(-1) or arcsin function on your calculator. It is often denoted as "sin^(-1)", "arcsin", or "sin⁻¹". On most calculators, you can find it by pressing the "2nd" or "SHIFT" key, followed by the key with "sin" or "sin⁻¹" labeled on it.

3. Once you have located the sin^(-1) function, enter the value 0.635.

4. Press the "=" or "Enter" button on your calculator to get the result.

The calculator will display the approximate value of sin^(-1)(0.635), which represents the angle whose sine is approximately 0.635. Keep in mind that this result will be in either degrees or radians, depending on your calculator's mode setting.

http://www.google.com/#q=+sin-1(+0.635)