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Hi everyone,

I'm Sue Khim, co-founder and CEO of Brilliant.org. I'm writing this note because Brilliant is hiring educators who are passionate about helping students excel in ...

Use the natural logarithm, IE base \(e\).

Inspiration

\[ \begin{cases}{x+y=\sqrt{4z-1}} \\ {y+z=\sqrt{4x-1}} \\ {z+x=\sqrt{4y-1}}\end{cases} \]

Find the sum of all values of \(x+y+z\) such that ...

The first round of the South African Mathematics Olympiad was held today at various high schools throughout the country. Can you solve the two hardest questions in the paper?

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