## anonymous one year ago http://gyazo.com/1a92dfd07c05de9eac4f6a6d48b603c7 question in pic link

1. anonymous

$\sqrt{a^2+b^2}$ is the absolute value of $$a+bi$$ check each one

2. anonymous

or just eyeball it you have to square one of the numbers and add, so it is pretty clearly not the first three

3. anonymous

so its D?