The matrix is .
The matrix has 2 row and 4 columns .
There fore, it is a matrix.
The circle element is in the second row and the first column.
The matrix is matrix and the circle element is in the second row and the first column.
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=e93cb2246fc572b85400c8d4910e7dc2.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=0afd63f05eba0f1486cfbe4f85d2acde.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=0aa05f43edbfea6a71c38d6d9a3e6ef3.png\")
matrix. ![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=0aa05f43edbfea6a71c38d6d9a3e6ef3.png\")
matrix and the circle element is in the second row and the first column.