Question
Suppose I tell you that one root of a polynomial function, f(x), is 4+3i . What must also be a root of f(x)?
281
likes1404 views
Answer to a math question Suppose I tell you that one root of a polynomial function, f(x), is 4+3i . What must also be a root of f(x)?
Eliseo
4.6110 Answers
1. Given that \(4+3i\) is a root.
2. For polynomials with real coefficients, complex roots always appear in conjugate pairs.
3. Therefore, the complex conjugate \(4-3i\) must also be a root.
Answer:4-3i
2. For polynomials with real coefficients, complex roots always appear in conjugate pairs.
3. Therefore, the complex conjugate \(4-3i\) must also be a root.
Answer:
Frequently asked questions (FAQs)
What is the variance of the dataset {4, 10, 6, 9, 8}?
+
What is the decimal equivalent of the fraction 3/5?
+
What is the value of arccot(2) in radians?
+
New questions in Mathematics