\
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b6bd17b87e55f2a922e3e1fe3ffdac9a.png\")
is rational, but ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=217eb7dfd0f6ca8f779637b9d9a1e785.png\")
is irrational.
\
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
A square root of a positive integer is sometimes an irrational number.
\ For example, ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b6bd17b87e55f2a922e3e1fe3ffdac9a.png\")
is rational, but ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=217eb7dfd0f6ca8f779637b9d9a1e785.png\")
is irrational. ![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
A square root of a positive integer is sometimes an irrational number.
\ For example, is rational, but is irrational.