Rani posted an Question
September 27, 2021 • 04:34 am 1 points
  • IIT JAM
  • Mathematics (MA)

Ap ab xac |=0 prove that the four points a, b, c and d are coplanar if and only if ad. ab xac=

AP AB xAC |=0 Prove that the four points A, B, C and D are coplanar if and only if AD. AB xAC=

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  • Anonymous User best-answer

    if A,B,C,D are co planer than angle between AB and AC is zero and ABxAC perpendicular to AD so AD.(ABxAC)=AD .{AB AC sin0}=0

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