![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
The number is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c832afbe146fe125f7ff42af32c1bfe4.png\")
. Radicand is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=125b2a9480607a4bae723bc6ee9cc93d.png\")
.
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=f98d033d19b84892b2d5b4ca06f9da5c.png\")
(Square root of ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=764730da17ce7645e554ce530400624c.png\")
)
§ Observe the Venn diagram:
\§ The number ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=a7daea14795c114fde4589ef6217a92e.png\")
is an integer number (Z).
§ The sets of integers (Z) are subsets of rational number (Q).
\§ All rational numbers (Q) are real numbers (R). \ \
![\"\"](\"/userfiles/image/Library/Algebra%202/number%20chart_Alg2_pa14_p1.gif\")
![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
\
The number ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c832afbe146fe125f7ff42af32c1bfe4.png\")
belongs to Z, Q and R.