Mathematics, 04.02.2020 08:03 genyjoannerubiera

If 9i is a root of the polynomial function f(x), which of the following must also be a root of f(x)?

a.-9ib.-1/9i c.1/9i d.9-i

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If 9i is a root of the polynomial function f(x), which of the following must also be a root of f(x)?...