27pegean 27pegean

07-05-2017
Mathematics

contestada

how do I calculate the abs of value of (2-3i)^2

Respuesta :

Аноним Аноним

07-05-2017

(2-3i)(2-3i)

Foil this out.

4-12i+9i²
= 4-12i-9

Keep in mind i² = -1.

= -5-12i

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