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Watch Video on Complex Numbers - Algebra 2 Help
From
yourteachermathhelp
Published 17 months ago
To access the complete lesson on this topic, go to http://www.yourteacher.com. Students learn that a complex number is the sum or difference of a real number and an imaginary number and can be written in a + bi form. For example, 1 + 2i and -- 5 --... more
To access the complete lesson on this topic, go to http://www.yourteacher.com. Students learn that a complex number is the sum or difference of a real number and an imaginary number and can be written in a + bi form. For example, 1 + 2i and -- 5 -- i root 7 are complex numbers. Students then learn to add, subtract, multiply, and divide complex numbers that do not contain radicals, such as (5 + 3i) / (6 -- 2i). To divide (5 + 3i) / (6 -- 2i), the first step is to multiply both the numerator and denominator of the fraction by the conjugate of the denominator, which is (6 + 2i), then FOIL in both the numerator and denominator, and combine like terms. less
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