fofanaj44 fofanaj44

09-02-2019
Mathematics

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last problem 100% of my next grade please help anyone

last problem 100 of my next grade please help anyone class=

Respuesta :

wegnerkolmp2741o wegnerkolmp2741o

09-02-2019

Answer:

z =-8.660254038 -5i

Step-by-step explanation:

z = |z| cos theta + |z| i sin theta

We know |z| and theta

z = 10 cos 210 +10 i sin 210

z = 10 (-sqrt3)/2 + 10i (-1/2)

z = -5 sqrt(3) -5i

or approximately

z =-8.660254038 -5i

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good job