51). The three vectors A = 3i - 2j-k, B
= 1 - 3j + 5k and C = 2i - j - 4k does
not form
(1) An equilateral triangle
(2) isosceles triangle
(3) A right angled triangle
(4) No triangle
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Answer:
ans is (1) because A,B,Cvectors are different
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