One more error, sorry by Franco Rampazzo - Wednesday, 12 October 2022, 2:04 PM Number of replies: 0 In the excercise I uploaded yesterday (two times) there was one more error! Sorry about that.Question 1) is not "verify that 3 and -4 are complex numbers" (there is nothing to verify!) but "verify that 3 and -4 are solutions of eq. (1)FR Permalink