If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content

Distance of complex numbers

You might need: Calculator

Problem

Find the distance d between z, start subscript, 1, end subscript, equals, left parenthesis, 12, plus, 3, i, right parenthesis and z, start subscript, 2, end subscript, equals, left parenthesis, 10, minus, 5, i, right parenthesis.
Express your answer in exact terms and simplify, if needed.
d, equals
Stuck?
Stuck?