![\"\"](\"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=e5138d0d8c2374a8909240fbb760a62a.png\")
.
Using calculator
\Function Mode Calculator Keystrokes Display
\![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=e5138d0d8c2374a8909240fbb760a62a.png\")
Degree ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=121acda80c23b4508e57ce51a484ad95.png\")
0.4348
![\"\"](\"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=6eac9a08f19c6e4514326f21877a9faf.png\")
.
Using calculator
\Function Mode Calculator Keystrokes Display
\![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=6eac9a08f19c6e4514326f21877a9faf.png\")
Degree ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=e814ac25947add90d8d3c7157c96f050.png\")
0.4348
![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
(a) The value of is 0.4348.
(b) The value of is 0.4348.