Let $M=\{x\in\mathbb{R}^{3}: x_{1}^{2}+x_{2}^{2}+x_{3}^{2}\le4, x_{1}^{2}-4x_{2}\le0\}$ and $y=(1,0,2)^{T}$. What is the projection of the vector $y$ on the set $M$?
2026-05-14 15:18:48.1778771928
Projection of a point on a set
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