Given matrix is .
The matrix has 1 row and 4 columns .
There fore, it is a matrix.
The circle element is in the second row and the fourth column.
The matrix is matrix and the circle element is in the second row and the fourth column.
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.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=379a3a296f7bb833c96d8e1a15fa3a7e.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=0b77f49d4d73eac203a227f5c01ed988.png\")
matrix. ![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
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matrix and the circle element is in the second row and the fourth column.