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)
I think it might be 11/12 you can enter it into a smart calculator that's what I did hope this helps
Answer:
B
Step-by-step explanation:
