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For A(2, 3, -4) and B(1, -2, 3), direction ratios of AB can be
A3, 1, -1
B-1, -5, 7
C1, 5, 7
D3, 5, -1
Answer & Solution
Correct answer: B. -1, -5, 7
B minus A gives 1-2, -2-3, 3+4, which is -1, -5, 7.
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