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A line has the vector equation r = (i + j) + t(3i - 2j + k). Its direction ratios are
A1, 1, 0
B-3, 2, 1
C3, 2, -1
D3, -2, 1
Answer & Solution
Correct answer: D. 3, -2, 1
The coefficients of the vector multiplied by the parameter are the direction ratios.
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