Question: Question 5 Composite Bzier surface Given the following control points of a bi-quadratic Bzier surface patch patch 1: 21 5); (18 23 0); (18

Question 5 Composite Bzier surface Given the following control points of a bi-quadratic Bzier surface patch patch 1: 21 5); (18 23 0); (18 17 3); 17 6); (0 14 0); (8 14 6); (18 14 4); (0 (0 20 0); (8 17 0); (8 a) What is the unit normal vector at the point (18 23 0)?

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