How do you find #abs(0 - 4i )#?
1 Answer
Mar 27, 2016
4
Explanation:
Given a complex number x + iy , then it's magnitude is found
using ' Pythagoras' theorem' , as follows.| x + iy | =
#sqrt(x^2 + y^2) #
#rArr |0 - 4i | = sqrt(0^2 + (-4)^2) = sqrt16 = 4 #
