Lösung 3.1:2a

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One way to simplify the expression is to write it in power form and then work with the power rules,

\displaystyle \sqrt{3^{2}} = \bigl(3^{2}\bigr)^{1/2} = 3^{2\cdot\frac{1}{2}} = 3^{1} = 3.
Von „http://wiki.sommarmatte.se/wikis/2009/bridgecourse1-TU-Berlin/index.php/L%C3%B6sung_3.1:2a“