(1+i)²除以(1-i)等于?

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(1+i)²除以(1-i)等于?

(1+i)²除以(1-i)等于?
(1+i)²除以(1-i)等于?

(1+i)²除以(1-i)等于?
=(1+i)^2/(1-i)=2i/(1-i)=2i(1+i)/(1-i)(1+i)=i-1

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