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Lösung 3.2:4c

Version vom 15:33, 22. Okt. 2008 von Ian (Diskussion | Beiträge)

One way to determine the magnitude is to calculate the product 3−4i3+2i and then to take the magnitude of the result, but for products

zw=zw

and we can take the magnitude of the factors 3−4i and 3+2i and then multiply the magnitudes together:

3−4i3+2i=3−4i3+2i=32+−4232+22=9+169+4=2513=513