Operations on Complex Numbers

Students learn to add, subtract, multiply, and divide complex numbers that contain radicals. For example, to divide (3 + 5i root 11) / (6 + 2i root 11), the first step is to multiply both the numerator and denominator of the fraction by the conjugate of the denominator, which is (6 2i root 11), then FOIL in both the numerator and denominator, and combine like terms.



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