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# Irrational and Complex Numbers

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 In this video, Salman Khan of Khan Academy explains complex numbers. Part 2 of 2. Khan Academy This video includes sample exercises and step-by-step explanations of complex numbers and conjugates for the California Standards Test. Khan Academy This video includes sample exercises and step-by-step explanations of imaginary and complex numbers for the California Standards Test. Khan Academy A helpful scientific calculator that runs in your web browser window. Holt Online Learning In this video, Salman Khan of Khan Academy explains complex numbers. Part 1 of 2. Khan Academy This algebra reference sheet contains the following algebraic operations addition, subtraction, multiplication, and division. It also contains associative, commutative, and distributive properties. There are example of arithmetic operations as well as properties of exponents, radicals, inequalities, absolute values, complex numbers, logarithms, and polynomials. This sheet also contains many common factoring examples. There is a description of the quadratic equation as well as step by step instruction to complete the square. eCalc.com The perfect study site for high school, college students and adult learners. Get help to do your homework, refresh your memory, prepare for a test, .... SOS math In this video, Salman Khan of Khan Academy explains i and imaginary numbers. Khan Academy How to solve equations with complex numbers SOS Math Good site for students to look at if they have just been introduced to complex/imaginary numbers. Works some example problems dealing with simplification of complex expressions. Pauls Online Math Notes