![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
(a)
\The trigonometric function is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=a5aa454de67744e9eefc511f008d96c5.png\")
.
Using calculator
\Function Mode Calculator Keystrokes Display
\![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=a5aa454de67744e9eefc511f008d96c5.png\")
Degree ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=f19acee8d5bdb84790744d2de7d282e0.png\")
0.1842
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step2.JPG\")
(b)
\The trigonometric function is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=ea7b101419a6dae1884f82b83c80309c.png\")
.
Using calculator
\Function Mode Calculator Keystrokes Display
\![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=ea7b101419a6dae1884f82b83c80309c.png\")
Degree ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=31ac5ed8b6f310388af913251795177a.png\")
5.5186
![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
(a) The value of is 0.1842.
(b) The value of is 5.5186.