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Exercise 2

Avg difficulty 3.0

  • Find the line incident on these points in the projective plane.

    (123), (456)\begin{pmatrix}1\\ 2\\ 3\end{pmatrix},\,\begin{pmatrix}4\\ 5\\ 6\end{pmatrix}

  • Find the point incident on both of these projective lines.

    (123), (456)(\begin{matrix}1&2&3\end{matrix}),\,(\begin{matrix}4&5&6\end{matrix})

Hefferon, Linear Algebra, Determinants, Projective Geometry, Exercise 2

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Adapted from Linear Algebra © 2016 Jim Hefferon. Licensed under CC BY-SA 3.0 US. Source: Linear Algebra. Imported at revision df2262e.