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Mathematics 7 Online
OpenStudy (anonymous):

-i-i=?

OpenStudy (kc_kennylau):

-2i

OpenStudy (anonymous):

its not -2i

OpenStudy (kc_kennylau):

why not

OpenStudy (anonymous):

because its either 1 or 0 and im not sure which one it is.

OpenStudy (kc_kennylau):

Neither

OpenStudy (anonymous):

hows it neither?

OpenStudy (kc_kennylau):

-2i is -2i it's neither 1 nor 0

OpenStudy (kc_kennylau):

Except if i is not the imaginary unit sqrt(-1)

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