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avatar+42 

What number must we add to 3-5i to get 2+7i? Here, i^2=-1

 May 1, 2022
 #1
avatar+42 
+1

it is 12i-1

 May 1, 2022
 #2
avatar+52 
0

Yes it should be \(-1+12i\).

 May 1, 2022

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