alleryStart learning →The line through points with position vectors i + j and 3i + 5j + 2k is
Ar = (i + j) + λ(4i + 6j + 2k)
Br = (i + j) + λ(2i + 4j + 2k)
Cr = (3i + 5j) + λ(2i + 4j)
Dr = (i + j) + λ(2i + 6j + 2k)
Answer & Solution
Correct answer: B. r = (i + j) + λ(2i + 4j + 2k)
The direction vector is (3i + 5j + 2k) - (i + j) = 2i + 4j + 2k, with base point i + j.
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