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Projective line as a quotient by a torus

Let $k$ be a field, and let $T$ an $n$-dimensional split torus over $k$. Let $X$ be a $k$-scheme with algebraic $T$-action. Solve for X: $$X / T \cong \mathbf{P}^1_k$$ (The quotient should be a cate …
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