=i -(1/1+i) - 2(1+i)/ i + (-1)=0

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

2-3i/i-1

2+3i
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1 Answer

-1/(1+i)=-(1-i)/(1-i²)=-(1-i)/(1+1)=-½+½i; -2/i=-2i/(-1)=2i.

So the given expression becomes -½+½i+2i=-½+5i/2.

That is, a=-½, b=2½.

Only the last answer option is in the right form, but it is not equivalent to the given expression.

by Top Rated User (721k points)

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