user14746 user14746
  • 13-10-2021
  • Mathematics
contestada

Write your answer in a + bi form.

A=___

B=___

Write your answer in a bi form A B class=

Respuesta :

surjithayer10otahza surjithayer10otahza
  • 13-10-2021

Answer:

Step-by-step explanation:

[tex]\frac{-3+7i}{-6-7i} \times \frac{-6+7i}{-6+7i} =\frac{18-21i-42i-49i^2}{(-6)^2-(7i)^2} \\=\frac{18-63i -49(-1)}{36-49i^2} \\=\frac{18+49-63 i}{36-49(-1)} \\=\frac{67-63i}{36+49} \\=\frac{67-63i}{85} \\=\frac{67}{85} +(\frac{-63}{85} )i\\[/tex]

[tex]a=\frac{67}{85} \\b=\frac{-63}{85}[/tex]

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