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Lösung 3.1:2c

Aus Online Mathematik Brückenkurs 1

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The expression −32 means −32 =−9   (and not −32  ) and so we have


The root expression −9  is not defined because there is no number which, when multiplied by itself, gives −9.

Von „http://wiki.sommarmatte.se/wikis/2009/bridgecourse1-TU-Berlin/index.php/L%C3%B6sung_3.1:2c“