32:T8d8,

y=x|x|

y=x-|x|

33:T23d8,

\begin{aligned} & y=x|x|= \begin{cases}x^2, & x>0 \\ -x^2, & x<0\end{cases} \\ & y=x-|x|= \begin{cases}0, & x>0 \\ 2 x, & x<0\end{cases} \end{aligned}

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More on Area Under the Curves

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