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Evaluate (4+2i )/( -1+i)

 Aug 19, 2020
 #1
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(4+2i) / (-1+i)

= (4+2i) / (i-1)

 

(4+2i)(i+1) / (i-1)(i+1)

= 2(i^2)+6i+4 / (i^2)-1

= 6i-2+4 / -1-1

= 6i+2 / -2

= -3i-1

 Aug 20, 2020

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