Solution 3.1:1a
From Förberedande kurs i matematik 2
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When two complex numbers are added, we add their real and imaginary parts together | When two complex numbers are added, we add their real and imaginary parts together | ||
- | <math>\begin{align} | + | |
- | (5-2i)+(3+5i)&=(5+3)+(-2i+5i)\\ | + | {{Displayed math||<math>\begin{align} |
- | &=8+(-2+5)i\\ | + | (5-2i)+(3+5i) |
- | &=8+3i | + | &= (5+3)+(-2i+5i)\\ |
- | \end{align} | + | &= 8+(-2+5)i\\ |
- | </math> | + | &= 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} |