TestPage

This is a test page

I'm going to write some math

Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle E(|A\cap B|) = n * P(i \in A\cap B) = n* \left(\frac{\binom{N-1}{n-1}}{\binom{N}{n}}\right)^2 = \frac{n^3}{N^2}}

I hope that works

<HTML5video width="640" height="360" autoplay="false">Polar2</HTML5video>

Final Answer:

The final solution is the portion of the graph that below Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle y = \vert x\vert + 1} and inside Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle x^2 + y^2 = 9}