Fanct ytyest visual 1 ? 2 3 4 Fancy test II thousand
we test again
yatest
1 + 2 + ⋯ + 200 ⏞ 5150 {\displaystyle \overbrace {1+2+\cdots +200} ^{5150}}
∬ y 2 d y {\displaystyle \iint y^{2}dy} ∬ y 2 r r r r d y {\displaystyle \iint y^{2}rrrrdy} test of 1.16
test fancy
y = n x 2 + m x + c {\displaystyle y=nx^{2}+mx+c}
y = m x + c {\displaystyle y=mx+c}
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