# Complex Modulus/Examples/4+3i

## Example of Complex Modulus

$\cmod {4 + 3 i} = 5$

## Proof

 $\ds \cmod {4 + 3 i}$ $=$ $\ds \sqrt {4^2 + 3^2}$ Definition of Complex Modulus $\ds$ $=$ $\ds \sqrt {25}$ $\ds$ $=$ $\ds 5$

$\blacksquare$