$\"\"$

\

The trigonometric function is $\"\"$ .

\

Converting the function into decimal degree form.

\

(Substitute $\"\"$ )

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

Use calculator to evaluate $\"\"$

\

Function Calculator Keystrokes Display

\

$\"\"$ $\"\"$ 0.9964 $\"\"$

\

The value of the function is 0.9964.

\

$\"\"$

\

The trigonometric function is $\"\"$ .

\

Converting the function into decimal degree form.

\

(Substitute $\"\"$ )

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

Use calculator to evaluate $\"\"$

\

Function Calculator Keystrokes Display

\

$\"\"$ $\"\"$ 1.0036 $\"\"$

\

The value of the function is 1.0036.