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friendica (DFRN) - Link to source

MathJax テスト $$\sin x$$
MathJax test
$$
\int_{-\infty}^{\infty}\frac{dx}{x^3+1}
$$

friendica (DFRN) - Link to source
$$\int dx \frac{1}{x^4+1}$$

friendica (DFRN) - Link to source

テスト
test test test🙃
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