![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
The arithmetic sequence is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=018ab05cc6ffb51c457507b720bc3864.png\")
To find the common difference by subtracting successive terms.
\![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=68ce49c3d210347f8da30d8325922989.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=20cf048ccaa8d6a9addcb693df04a279.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=a8fc8d36f01568fbc8d315b58da1f0e1.png\")
.
The difference between terms in the sequence is constant.
\There fore, the above sequence is an arithmetic sequence and the common difference is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=4d2b3ce84b39f7943f1c2024824ead72.png\")
.![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
Yes, the above sequence is an arithmetic sequence and the common difference is ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=4d2b3ce84b39f7943f1c2024824ead72.png\")
.