Can someone please tell me why this statement is true:
Here's what I did:
as in it's false... so what's my mistake???
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The equation doesn't mean is the only solution , there are other solutions such as etc .
, since the
powers of are periodic modulo 4.
And your mistake was in , since it should be is
one of the 100 different roots of unit of order 100...or, of course,
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