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avatar+777 

I used z= r(cos + isin)

which gave me \(z= 2(cos(-\pi/3)+ isin(-\pi/3) ) \)

then simplified to z= 1- sqrt3 i 

but i was wrong and i got told the answer should be 3 - sqrt3i as u add 2 at the end 

can someone explain why please, thanks

 Feb 24, 2019
 #1
 #2
avatar+777 
+1

thanks

YEEEEEET  Feb 24, 2019

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