Answer 3.3:4

From Förberedande kurs i matematik 2

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m (Svar 3.3:4 moved to Answer 3.3:4: Robot: moved page)
Current revision (11:23, 31 July 2009) (edit) (undo)
(Changed answer to 3.3:4c)
 
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|c)
|c)
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|width="50%"| <math>z= \left\{\begin{matrix} -1 \\ \phantom{-}3 \\ \end{matrix}\right. </math>
+
|width="50%"| <math>z= \left\{\begin{matrix} -1+i\sqrt{2} \\ -1-i\sqrt{2}\end{matrix}\right. </math>
|d)
|d)
|width="50%"| <math>z= \left\{\begin{matrix} (1+i\sqrt{15})/4\\ (1-i\sqrt{15})/4 \end{matrix}\right.</math>
|width="50%"| <math>z= \left\{\begin{matrix} (1+i\sqrt{15})/4\\ (1-i\sqrt{15})/4 \end{matrix}\right.</math>
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Current revision

a) \displaystyle z= \left\{\begin{matrix} \phantom{-}(1+i)/\sqrt{2}\\ -(1+i)/\sqrt{2}\\ \end{matrix}\right. b) \displaystyle z = \left\{\begin{matrix} 2+i \\ 2-i \\ \end{matrix}\right.
c) \displaystyle z= \left\{\begin{matrix} -1+i\sqrt{2} \\ -1-i\sqrt{2}\end{matrix}\right. d) \displaystyle z= \left\{\begin{matrix} (1+i\sqrt{15})/4\\ (1-i\sqrt{15})/4 \end{matrix}\right.