MAT1033 Lecture Notes - Lecture 10: Quadratic Formula, Quadratic Equation, Imaginary Number
Document Summary
Provide a generalization to the terms listed in this section. While noted as i, is the given number whose square is going to be 1, which notes that: Numbers that occur in the form of a ratio. Numbers that would not occur in the form of a ratio. This is a type of number system that comes from introducing i, which is the imaginary number. z = a + bi. Any numbers that are in the form of where the following occur: a and b are real numbers, z is the standard form. B is the imaginary part: i is the imaginary unit. So this notes that i2 = i i = 1. Imaginary part: -6: -3+(-4)i = 3-4i. Imaginary part: -4: -(5)-(-2)i = -5+2i. Speci c complex numbers examples: a+0i = a. In this case, this help note that the real numbers are just subsets of the complex numbers: 0+bi = bi.
