True or False:
Multiple Monitors need to share same resolution and size.
False. It is not a requirement, but it is more convenient if they are same resolution and size.
How to tell if the computer detects both monitors.
Check display settings. If there is a box with a 1 in it and another with a 2 the computer sees both monitors.
Duplication and Extension
Duplicated monitors will show the same thing on both screens. Extending the monitor will make one primary and the other secondary allowing you to use both independently.