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Mathematics 18 Online
OpenStudy (precal):

need help with a complex number

OpenStudy (precal):

|dw:1337614326128:dw|

OpenStudy (unklerhaukus):

\[\frac{i}{1-i}=\frac{i}{1-i}\times\frac{1+i}{1+i}\]

OpenStudy (anonymous):

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

OpenStudy (precal):

I got (i-1)/2 but my calculator said .5 + .5i what did I do wrong?

OpenStudy (precal):

never mind, I put it in the calculator wrong

OpenStudy (precal):

Thanks for all of your help

OpenStudy (anonymous):

(i-1)/2=i/2+1/2=0.5i+0.5

OpenStudy (precal):

@lilysue you dropped your sign, should be negative 1/2

OpenStudy (anonymous):

yes ! sorry ! write too fast

OpenStudy (precal):

Thanks for your help :)

OpenStudy (anonymous):

ok

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