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Unformatted text preview: conjugate is a nonnegative real number. Thus if z=a +bi , then Theorem If N is a positive real number, we define the principal square root of N as In the complex number system, the solution of the quadratic equation where a, b, and c are real numbers and are given by the formula Solve: Discriminant of a Quadratic Equation is called a discriminant >0, there are 2 unequal real solutions. =0, there is a repeated real solution. <0, there are two complex solutions. The solutions are conjugates of each other....
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This note was uploaded on 12/17/2010 for the course MATH 131 taught by Professor Staff during the Fall '08 term at UNC.
 Fall '08
 Staff
 Real Numbers, Equations, Complex Numbers

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