Lösung 3.1:8b
Aus Online Mathematik Brückenkurs 1
If we write the numbers in power form,
\displaystyle \sqrt{7}=7^{{1}/{2}\;}
		and 		
\displaystyle 7=7^{1}
it becomes clear that 
\displaystyle 7 is larger than 
\displaystyle \sqrt{7}, because both numbers have the same base, 
\displaystyle 7, which is larger than 
\displaystyle 1
and the exponent 
\displaystyle 1 is greater than 
\displaystyle {1}/{2}\;.
 
		  