y _ { 1 } = \int _ { 0 } ^ { 1 } x d x ^ { 2 } d x
Solve for d
\left\{\begin{matrix}d=\frac{y_{1}}{x^{3}}\text{, }&x\neq 0\\d\in \mathrm{R}\text{, }&y_{1}=0\text{ and }x=0\end{matrix}\right.
Solve for y_1
y_{1}=\frac{d}{4}
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