Month: September 2019

http://lunlun.com/videos/830.mp4 What is the next number in the sequence 0, 3, 6, 9, 12 ? [silent video]

What is the next number in the sequence 0, 3, 6, 9, 12 ?

Complex numbers (problem and solution)

Complex numbers (problem and solution)

Complex numbers (problem and solution)

Complex numbers (problem and solution)

Complex numbers (problem and solution)

Complex numbers (problem and solution)

Complex numbers (problem and solution)

Complex numbers (problem with solution)