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The reciprocal of an n-th root of unity is equal to which related number?
Aits additive inverse
Bits complex conjugate
Cits own square root
Dits absolute value
Answer & Solution
Correct answer: B. its complex conjugate
For |z| = 1 the reciprocal 1/z equals the conjugate of z, and it is also an n-th root of unity.
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