Congratulations on joining Brilliant!
In this blog, you’ll find a discussion of Key Techniques and how we can use them to approach various challenges that you might come across during the competition. We will start with mathematics concepts that you have learned in school, explain their applications and work through some examples. We will also look at the solutions to the bonus challenge from the previous week, and other interesting solutions that other students have sent in. Feel free to explore through the categories listed above.
Comments currently are open and not moderated. Please do not post solutions to Test Yourself questions, so that other students can benefit from the experience of working things out themselves. Questions marked with a (*) often require additional knowledge, which may be covered in another post. You may send solutions / your working to email@example.com (or firstname.lastname@example.org), and I will review it and provide appropriate feedback. Please not that I do not discuss numerical answers, nor state the solutions to problems.
In the Brilliant interface, if you ever feel that a challenge is misstated, or a solution is unclear, don’t hesitate to hit ‘Request Clarification’ which is located at the bottom of the challenge, and we will reply to you within 24 hours. If you are unable to read the symbols in a challenge or solution, try refreshing the page. If that doesn’t work, click ‘Can’t read this?’ and we will do our best to correct the issue. Please note that if your email address is invalid, we will be unable to communicate with you, even though we have addressed your concerns.
All the best for the Brilliant Challenge!
P.S. In order to type LaTex on the blog, you will need to type it as $_latex code $ , with the _ between $ and latex removed. Give it a try, e.g. .