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Lösung 3.2:4b

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Version vom 10:38, 11. Mär. 2009

We calculate what the expression will be

(2i)+(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

(2i)+(5+3i)=2i+5+3i.