I can find the range of $Y$ easily but I get lost going anywhere past this because this is not an invertible function because $(X-1)^2$ does not pass the horizontal line test on this interval so I have no idea how to proceed.
2026-04-23 11:28:07.1776943687
If $X \sim Unif([-1,2])$ and $Y=(X-1)^{2}$, find the PDF of $Y$
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