Solution 3.1:1a

From Förberedande kurs i matematik 2

(Difference between revisions)
Jump to: navigation, search
(Ny sida: {{NAVCONTENT_START}} <center> Bild:3_1_1a.gif </center> {{NAVCONTENT_STOP}})
Current revision (14:45, 29 October 2008) (edit) (undo)
m
 
(3 intermediate revisions not shown.)
Line 1: Line 1:
-
{{NAVCONTENT_START}}
+
When two complex numbers are added, we add their real and imaginary parts together
-
<center> [[Bild:3_1_1a.gif]] </center>
+
 
-
{{NAVCONTENT_STOP}}
+
{{Displayed math||<math>\begin{align}
 +
(5-2i)+(3+5i)
 +
&= (5+3)+(-2i+5i)\\
 +
&= 8+(-2+5)i\\
 +
&= 8+3i\,\textrm{.}
 +
\end{align}</math>}}

Current revision

When two complex numbers are added, we add their real and imaginary parts together

\displaystyle \begin{align}

(5-2i)+(3+5i) &= (5+3)+(-2i+5i)\\ &= 8+(-2+5)i\\ &= 8+3i\,\textrm{.} \end{align}