Question: Multiplication by i is geometrically a counterclockwise rotation through /2 (90). Verify this by graphing z and iz and the angle of rotation for z

Multiplication by i is geometrically a counterclockwise rotation through π/2 (90°). Verify this by graphing z and iz and the angle of rotation for z = 1 + i, z = -1 + 2i, z = 4 - 3i.

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