The number is .
(Use a calculator to find out square root) \ \ The number is non-terminating and non-repeating, so it is irrational.
The number is irrational.
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
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(Use a calculator to find out square root) \ \
The number is non-terminating and non-repeating, so it is irrational.![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=884e3e3ac5570b0c73f52d302470450b.png\")
is irrational.