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OpenStudy (anonymous):
(1+i)^3?
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OpenStudy (helder_edwin):
do u know this \[ \large (a+b)^3=a^3+3a^2b+3ab^2+b^3 \] ?? do this remembering that \[ \large i^2=-1 \]
OpenStudy (anonymous):
ok
OpenStudy (anonymous):
I got it
OpenStudy (anonymous):
Thanx
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