mata22MATA22 Final Exam Review Seminar Notes Alice Huang April 2 2019 1 Complex Numbers Problem Roots of Complex Number. Find all complex numbers x such that x4 = −1. Solution:Shameless plug for my boy Kia, you should attend his FSGs, they should be running for MATA22. noring my blatant bias, my experience with this course is that it is 100% a grinder course,