TRIGONOMETRIC FUNCTIONS Evaluating (Page 6 of 15)

You can also evaluate a trigonometric function in radian mode when the angle is given in degrees by adding the degree symbol following the angle. For example, let's approximate csc(135°).

 CLEAR key.

 SIN key. 135 2nd ANGLE key. 1: menu selection. Right parenthesis key. x to the -1 key. ENTER key.

 Calculator screen image.

If you are in radian mode and the angle is in DMS format, just evaluate the trigonometric function as if you were in degree mode. Try evaluating sin(152° 39' 17").

 SIN key. 152 2nd ANGLE key. 1: menu selection. 39 2nd ANGLE key. 2: menu selection. 17 ALPHA Quote key. Right parenthesis key. ENTER key. Calculator screen image.
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