Lösung 3.2:1c
Aus Online Mathematik Brückenkurs 2
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Version vom 10:34, 11. Mär. 2009
By calculation, we obtain
| \displaystyle 2z+w = 2(2+i)+(2+3i) = 2\cdot 2 + 2 + (2+3)i = 6+5i |
and we can mark this point on the complex plane.
If we treat \displaystyle z and \displaystyle w as vectors, then \displaystyle 2z is the vector which has the same direction as \displaystyle z, but is twice as long.
We add \displaystyle w to this vector and get \displaystyle 2z+w.
