Question

How do you find `abs(4 + 5i)`?

Answer 1

`|4+5i| = sqrt(41)`

Explanation:

Given a complex number `a+bi`, we define the modulus of the number, denoted `|a+bi|` as

`|a+bi| = sqrt(a^2+b^2)`

In this case, that gives us

`|4+5i| = sqrt(4^2+5^2) = sqrt(41)`