Alg_Complete

# In the last example 113 the imaginary part is zero

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Unformatted text preview: .aspx College Algebra numbers and we’re going to need a way to deal with them. So, to deal with them we will need to discuss complex numbers. So, let’s start out with some of the basic definitions and terminology for complex numbers. The standard form of a complex number is a + bi where a and b are real numbers and they can be anything, positive, negative, zero, integers, fractions, decimals, it doesn’t matter. When in the standard form a is called the real part of the complex number and b is called the imaginary part of the complex number. Here are some examples of complex numbers. 3 + 5i 6 - 10i 4 +i 5 16i 113 The last two probably need a little more explanation. It is completely possible that a or b could be zero and so in 16i the real part is zero. When the real part is zero we often will call the complex number a purely imaginary number. In the last example (113) the imaginary part is zero and we actually have a real number. So, thinking of numbers in this light we can see th...
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