moriahsapphireblue76 moriahsapphireblue76

03-12-2018
Mathematics

contestada

Which pair of complex factors results in a real number product? 15(–15i) 3i(1 – 3i) (8 + 20i)(–8 – 20i) (4 + 7i)(4 – 7i)

Respuesta :

wegnerkolmp2741o wegnerkolmp2741o

03-12-2018

Answer:

(4 + 7i)(4 – 7i)

Step-by-step explanation:

This pair will produce a real answer because they are complex conjugates.

Complex conjugates ( a+bi) (a-bi) when multiplied together form a real number ( a^2 + b^2)

Answer Link

aasianai812 aasianai812

26-04-2020

Answer:

D. (4+7i)(4-7i)

Step-by-step explanation:

Answer Link

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