Thursday
April 24, 2014

Homework Help: pre-calc

Posted by melissa on Sunday, January 21, 2007 at 11:18pm.

Quest:
show that i (imaginary) is a zero of f (x)= x^3+ (3-i)x^2 - 4ix -1

Plug in i for x and add up the terms. You should get zero. Remember that i^2 = -1

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