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The complex numbers a and b satisfy a*[conjugate b] = -1+5i

find [conjugate a]*b

 Nov 27, 2019
 #1
avatar+24407 
+2

The complex numbers a and b satisfy a*[conjugate b] = -1+5i

find [conjugate a]*b

 

\(\begin{array}{|rcll|} \hline a*\overline{b} &=& -1+5i \\\\ \overline{a*\overline{b}} &=& \overline{-1+5i} \\\\ \overline{a}*\overline{\overline{b}} &=& \overline{-1+5i} \quad | \quad \overline{\overline{b}} = b \\\\ \mathbf{\overline{a}*b} &=& \mathbf{-1-5i} \\ \hline \end{array} \)

 

laugh

 Nov 27, 2019
 #2
avatar+108734 
+1

Thanks Heureka,

 

That was so easy but I never would have got it if you had not shown me first.   laugh

Melody  Nov 27, 2019
 #3
avatar+24407 
+2

Thank you, Melody !

 

laugh

heureka  Nov 27, 2019

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