Question:

19. The three vectors Ā  = 3î – 2ĵ + 1k̂,  B̅ = 1î – 3ĵ + 5k̂ and C̄ = 2î + 1ĵ – 4k̂ form

Options :

  • a) An equilateral triangle
  • b) Isosceles triangle
  • c) A right angled triangle
  • d) No triangle

Answer :

c) A right angled triangle

Answer Steps :

Solution :-

Step1 :-

Step2 :-

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