Practice Test 2 – Topics - College Algebra Exam 2

vi) Even though the equation z2 + 2jz + 1 = 0 has complex coefficients we can still use the usual quadratic formula to obtain the solution: z = = = (–1 )j. The roots of all equations i) to v) are either real or occur in conjugate pairs – for example – 2 + j and –2 – j. ................
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