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Mathematics 19 Online
OpenStudy (anonymous):

(i^3-i^4)+(i^2-i^3)

jhonyy9 (jhonyy9):

\[(i ^{2}*i-(i ^{2})^{2})+(i ^{2}-i ^{2}*i)=(-i-1)+(-1-(-1)i=-i-1-1+i=-2\]

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