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Lösung 3.2:4b

Version vom 11:57, 29. Okt. 2008 von Tek (Diskussion | Beiträge)

We calculate what the expression will be

(2−i)+(5+3i)=2+5+(−1+3)i=7+2i

and then calculate the magnitude,

7+2i

72+22=

49+4=

53.

Note: It is not possible to calculate the magnitude of the terms individually

(2−i)+(5+3i)

2−i

5+3i