Question

Conjugate of Root 5 minus iota whole square

Answer 1

Geometrically the conjugation of a complex number corresponds to taking its reflection with respect to the xx-axis. In the case of ii, you can think of it as the point (0,1)(0,1) in the plane. Therefore its reflection with respect to the xx-axis is the point (0,−1)(0,−1) which is −i−i.

The result you obtained is consistent with this since 1/−i=i/i2=i1/−i=i/i2=i.

Answer 2

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