Abbate3702 Abbate3702
  • 08-09-2022
  • Mathematics
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consider the points: a(1, 5, 1), b(2, 3, 2) and c(2, 2, 1). a. determine whether the angle abc is right, acute or obtuse. b. find all unit vectors that are perpendicular to the plane that contains these three points. c. find the area of the triangle with these three points as its vertices

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