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<math>f(x)=\sqrt[4]{x}</math>

<math>f(x)=\frac{y}{x}</math>
hallo

There was a young lady from Riga,

who smiled as she rode on a tiger.

they returned from the ride

with the lady inside

and the smile on the face of the tiger.

hello	is
a	table

         5

      /       \

    2           8

  /   \       /   \

1       4   7       9

This is a sentence that i use to try to edit something hier.