lynny913 lynny913

13-08-2014
Mathematics

contestada

Simplify the given expression:

(−5 + 3i) • (1 − 2i)

Respuesta :

konrad509 konrad509

13-08-2014

[tex] (-5 + 3i) (1- 2i)=\\ -5+10i+3i+6=\\ 1+13i[/tex]

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Аноним Аноним

13-08-2014

[tex](-5+3i)\cdot(1-2i)\\\\=-5+10i+3i-6i^2\\\\=-5+13i-6(-1)\\\\=-5+13i+6\\\\=\boxed{1+13i}[/tex]

[tex]i=\sqrt{-1}\to i^2=-1[/tex]

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