How do you find the absolute value of #-3+10i#?
1 Answer
Nov 13, 2016
Explanation:
Given a complex number
#z=x+yi# Then, using the theorem of Pythagoras, the absolute value is.
#color(orange)"Reminder " color(red)(bar(ul(|color(white)(2/2)color(black)(|z|=sqrt(x^2+y^2))color(white)(2/2)|)))# here x = - 3 and y = 10
#rArr|-3+10i|=sqrt((-3)^2+10^2)=sqrt109#