smuqtadir124
22.10.2020 •
Mathematics
For a fifth order polynomial, if x=a+bi is a root, and x=c+di is a root, how many real roots are there?
A. 1
B. 2
C. 5
D. 3
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Ответ:
If x=a+bi is a root then so is x=a-bi and if x=c+di is a root then so is x=c-di and all of those have imaginary numbers so they are not real therefore, there is only one real root.
Ответ: