Dear new brilliant member brilliant has know some problems. Check all of them here.
Brilliant is made in this world for people from all over the world to learn number theory, quantitative finance, algebra, logic, geometry, calculus, classical mechanics, electricity and magnetism, basic mathematics, discrete mathematics, computer science and chemistry. To get to them click Practice(up, middle). You will first see the courses from the current topic. When you scroll down you will see different parts of the current topic. If you click one of them you will see problems by the Brilliant staff and by odder users. The problems by the odder users are separated in 1-2 or 1-3 level. Scroll down more you will see many wikis for different things of the current topic.
Level 1, Level 2, Level 3, Level 4 and Level 5 means different levels of hardness.
To log out and log in click the globe(up, right) and then "log out", to log in type brilliant.org then the "e-mail" you type at first and then the password.
To get back to your profile click the globe(up, right) then Profile and your in your profile.
To write a problem go to your profile and click "+ Problem" then write the problem then for the answers you can have 1 correct and 1 - 7 dummy answers or numerical answer where you type the correct answer. You can click on "Guidelines" and see some helpful things. You might wonder what are the other two buttons. The button with " + Note" is for example this is a note. The button with the " + Wiki" this is a wiki for Tic Tac Toe.
There are problems called Problems of the week. To write one you must post your problem on monday before the other members, it really depends from the time zone.
How to use \(LaTeX\)? Here is a note with all the things about \(LaTeX\).
What is a reported problem? A reported problem means a problem that isn't clearly stated or its correct answer is incorrect. Here is an example of a problem the its correct answer is incorrect. How do you know that a problem is reported or someone reported your problem? You can see in the example the there is a text in blue in a yellow rectangle. To know that someone has been reported your problem you get a notification.