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Evaluating Complex Numbers

Given the complex numbers
z1 = 5 - j4
z2 = 4 + j
z3 = -6 - j7
z4 = j2

Calculate, giving your answers in the form a + jb, the following:-

(i) z4 - z1 + z2
(ii) 3z1 - 2z3 + z4
(iii) z1z2
(iv) z3/z2

Solution Summary

Addition, subtraction, multiplication and division of complex numbers poses several calculation problems. This problem illustrates how to perform these opertaions with two or more complex numbers of the form a + jb.

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