Sandpit

$\stackrel{5150}{\overbrace{1+2+\cdots +200}}$

test friedell

test date

retest

$\iint y^{2}dy$ $\iint y^{2}rrrrdy$

• sand 2

$y=n{x}^2+mx+c$

$y=n{x}^8+m{x}^4+c$

$y=mx+c$

Notes

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