How do you find the absolute value of #1+3i#?
1 Answer
Mar 9, 2018
Explanation:
The absolute value of a complex number is its distance from the origin
By Pythagoras' theorem this is the square root of the sum of the squares of the real and imaginary parts.
That is:
#abs(1+3i) = sqrt(1^2+3^2) = sqrt(1+9) = sqrt(10)#
