Multiplication of complex numbers Rules , Mistakes


Complex numbers are of the form a + ib, with a real component a and an imaginary component which has a coefficient b.

When you multiply two real numbers it is equivalent to multiplying 4 numbers. Multiply each of a and ib of the complex number with both the a and ib of the other number. Once you are done, the terms with i can be added to give the coefficient of the imaginary component of the product. Use the property that i^2 = -1 to deal with the term that does not have i and which has i^2.

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