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:MATA22 Final Exam Review Seminar. Thursday, April 18, 2025, 02:00 pm - 04:00 pm. Attend this review seminar for the upcoming MATA22 final exam. Please register in