ARGAND DIAGRAM

ARGAND DIAGRAM


C
Asked by 2 months ago
10 million points

Given $|z|=10$ and $arg z=120^o$, write down $z$

ARGAND DIAGRAM
chegendungu

1 Answer

C
Answered by 2 months ago
10 million points

$z=10(\cos 120^o+i\sin 120^o)$

$=10\bigg(-\frac{1}{2}+i\frac{\sqrt{3}}{2}\bigg)$

$=-5+5\sqrt{3} i$

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Asked: 2 months ago

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