SOLUTION: show that (1+i)(1-d)=1 and hence express^4 as a function of i^3

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Question 1045278: show that (1+i)(1-d)=1 and hence express^4 as a function of i^3
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
%281%2Bi%29%281-d%29
1%5E2%2Bi-d-di
1-d%2Bi-di
1-d%2B%281-d%29i%3C%3E1------------Not what you wanted.

Answer by ikleyn(52890) About Me  (Show Source):
You can put this solution on YOUR website!
.
1. The first part of the condition is wrong.

2. The second part of the condition, as it is written, doesn't make sense.