Diskriminante/Q i/Basis/1/Aufgabe

{}\mathbb {Q} \subseteq \mathbb {Q} [{\mathrm {i} }]\,

zur Basis ${}1$ und ${}{\mathrm {i} }$ und zur Basis

{}2-5{\mathrm {i} }

und

{}4+7{\mathrm {i} }

.

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