![\"\"](\"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=97a4d3d88c23dfb80bfb7dc098d02223.png\")
.
Using calculator
\Function Mode Calculator Keystrokes Display
\![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=97a4d3d88c23dfb80bfb7dc098d02223.png\")
Degree ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=a80e45adea05bde216d26928a85aab96.png\")
0.1736
![\"\"](\"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=846e4a686cf1ad3822512f5561a11a4a.png\")
.
Using calculator
\Function Mode Calculator Keystrokes Display
\![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=846e4a686cf1ad3822512f5561a11a4a.png\")
Degree ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=6aabbad0995ff261603e753ff6de9818.png\")
0.1736
![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
(a) The value of is 0.1736.
(b) The value of is 0.1736.